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藤井 孝太郎
生命科学部 環境応用化学科
准教授
Researchmap個人ページ
https://researchmap.jp/kotaro-kf
研究活動情報
■ 受賞
- 2021年06月
東京工業大学, 挑戦的研究賞 - 2018年12月
東京工業大学理学院, 理学院若手研究奨励賞 - 2017年11月
日本セラミックス協会賞 進歩賞
藤井 孝太郎 - 2014年11月
日本結晶学会 進歩賞
藤井 孝太郎 - 2010年02月
手島精一記念研究賞(博士論文賞)
藤井 孝太郎
- High Oxide-Ion Conduction in Rb-Containing Oxides
Yuta Yasui; Kazuaki Jojima; Kotaro Fujii; Kazuhiro Mori; Masatomo Yashima
Chemistry of Materials, 2025年02月11日 - High proton conductivity in Nb5+-doped BaScO2.5
Kei Saito; Mitsuki Baba; Kensei Umeda; Kotaro Fujii; Takashi Honda; Masatomo Yashima
Inorganic Chemistry Frontiers, 2025年 - Solid-State 95Mo and 93Nb NMR Study of Ba7Nb4MoO20-Based Materials and Ba7Ta3.7Mo1.3O20.15
Masataka Tansho; Atsushi Goto; Shinobu Ohki; Yuuki Mogami; Yuta Yasui; Yuichi Sakuda; Kotaro Fujii; Takahiro Iijima; Masatomo Yashima
The Journal of Physical Chemistry C, 2024年11月21日 - High Conductivity and Diffusion Mechanism of Oxide Ions in Triple Fluorite-Like Layers of Oxyhalides
Nachi Ueno; Hiroshi Yaguchi; Kotaro Fujii; Masatomo Yashima
Journal of the American Chemical Society, 2024年04月09日 - Anionic Sublattices in Halide Solid Electrolytes: A Case Study with High‐Pressure Phase of Li3ScCl6
Fenghua Ding; Atsunori Doi; Takafumi Ogawa; Hiroki Ubukata; Tong Zhu; Daichi Kato; Cédric Tassel; Itaru Oikawa; Naoki Inui; Satoru Kuze; Tsutomu Yamabayashi; Kotaro Fujii; Masatomo Yashima; Xing Ou; Zhijian Wang; Xiaobo Min; Koji Fujita; Hitoshi Takamura; Akihide Kuwabara; Tianren Zhang; Kent J. Griffith; Zhang Lin; Liyuan Chai; Hiroshi Kageyama
Angewandte Chemie International Edition, 2024年02月16日 - Strongly Enhanced Polarization in a Ferroelectric Crystal by Conduction-Proton Flow
Junichi Yanagisawa; Takuya Aoyama; Kotaro Fujii; Masatomo Yashima; Yoshiyuki Inaguma; Akihide Kuwabara; Kazuki Shitara; Benjamin Le Ouay; Shinya Hayami; Masaaki Ohba; Ryo Ohtani
Journal of the American Chemical Society, 2024年01月17日 - High proton conduction by full hydration in highly oxygen deficient perovskite
Kei Saito; Kensei Umeda; Kotaro Fujii; Kazuhiro Mori; Masatomo Yashima
Journal of Materials Chemistry A, 2024年 - Synthesis, crystal structure and investigation of ion-exchange possibility for sodium tellurate NaTeO3(OH)
Tsubasa Ishii; Yue Jin Shan; Kotaro Fujii; Tetsuhiro Katsumata; Hideo Imoto; Ariunaa Baterdene; Keitaro Tezuka; Masatomo Yashima
Dalton Transactions, 2024年 - Dimer-Mediated Cooperative Mechanism of Ultrafast-Ion Conduction in Hexagonal Perovskite-Related Oxides
Yuichi Sakuda; Taito Murakami; Maxim Avdeev; Kotaro Fujii; Yuta Yasui; James R. Hester; Masato Hagihala; Yoichi Ikeda; Yusuke Nambu; Masatomo Yashima
Chemistry of Materials, 2023年11月14日 - Structure Analysis and Luminescence Properties of Red-emitting Iodide Scintillators with Potassium-hexachloroplatinate(IV) Type Structure
Shohei Kodama; Shunsuke Kurosawa; Kotaro Fujii; Masatomo Yashima; Akihiro Yamaji; Akira Yoshikawa
Journal of Alloys and Compounds, 2023年10月 - Structural and electrical properties of Bi3GaSb2O11 at high temperatures
Kohei Matsuzaki; Wenrui Zhang; Kei Saito; Kotaro Fujii; Masatomo Yashima
Journal of Solid State Chemistry, 2023年10月 - Synthesis and ionic conductivity of an argyrodite-type Li6SbS5I electrolyte
Takuya Kimura; Ryo Izawa; Chie Hotehama; Kotaro Fujii; Atsushi Sakuda; Masatomo Yashima; Masahiro Tatsumisago; Akitoshi Hayashi
Solid State Ionics, 2023年10月 - Thiocyanate-Stabilized Pseudo-cubic Perovskite CH(NH2)2PbI3 from Coincident Columnar Defect Lattices
Takuya Ohmi; Iain W. H. Oswald; James R. Neilson; Nikolaj Roth; Shunta Nishioka; Kazuhiko Maeda; Kotaro Fujii; Masatomo Yashima; Masaki Azuma; Takafumi Yamamoto
Journal of the American Chemical Society, 2023年08月31日 - La4Ga2S8O3: A Rare-Earth Gallium Oxysulfide with Disulfide Ions
Hong Yan; Kotaro Fujii; Houria Kabbour; Akira Chikamatsu; Yu Meng; Yoshitaka Matsushita; Masatomo Yashima; Kazunari Yamaura; Yoshihiro Tsujimoto
Inorganic Chemistry, 2023年06月22日 - Hidden chemical order in disordered Ba7Nb4MoO20 revealed by resonant X-ray diffraction and solid-state NMR
Yuta Yasui; Masataka Tansho; Kotaro Fujii; Yuichi Sakuda; Atsushi Goto; Shinobu Ohki; Yuuki Mogami; Takahiro Iijima; Shintaro Kobayashi; Shogo Kawaguchi; Keiichi Osaka; Kazutaka Ikeda; Toshiya Otomo; Masatomo Yashima
Nature Communications, 2023年04月24日 - Supramolecular multi-electron redox photosensitisers comprising a ring-shaped Re(i) tetranuclear complex and a polyoxometalate
Maria Takahashi; Tsuyoshi Asatani; Tatsuki Morimoto; Yoshinobu Kamakura; Kotaro Fujii; Masatomo Yashima; Naoki Hosokawa; Yusuke Tamaki; Osamu Ishitani
Chemical Science, 2023年, [査読有り] - Bi 12 O 17 Cl 2 with a Sextuple BiO Layer Composed of Rock‐Salt and Fluorite Units and its Structural Conversion through Fluorination to Enhance Photocatalytic Activity
Daichi Kato; Osamu Tomita; Ryky Nelson; Maria A. Kirsanova; Richard Dronskowski; Hajime Suzuki; Chengchao Zhong; Cédric Tassel; Kohdai Ishida; Yosuke Matsuzaki; Craig M. Brown; Koji Fujita; Kotaro Fujii; Masatomo Yashima; Yoji Kobayashi; Akinori Saeki; Itaru Oikawa; Hitoshi Takamura; Ryu Abe; Hiroshi Kageyama; Tatiana E. Gorelik; Artem M. Abakumov
Advanced Functional Materials, 2022年10月 - Different Local Structures of Mo and Nb Polyhedra in the Oxide-Ion-Conducting Hexagonal Perovskite-Related Oxide Ba3MoNbO8.5 Revealed by 95Mo and 93Nb NMR Measurements
Masataka Tansho; Atsushi Goto; Shinobu Ohki; Yuuki Mogami; Yuichi Sakuda; Yuta Yasui; Taito Murakami; Kotaro Fujii; Takahiro Iijima; Masatomo Yashima
The Journal of Physical Chemistry C, 2022年08月11日 - Ge-Containing Oxide-Ion Conductors with CaEu2Ge3O10-Type Structure Discovered by the Bond-Valence Method and Experiments
Masahiro Matsui; Kotaro Fujii; Masahiro Shiraiwa; Masatomo Yashima
Inorganic Chemistry, 2022年07月27日 - High Proton Conduction in Ba2LuAlO5 with Highly Oxygen Deficient Layers
Riho Morikawa; Taito Murakami; Kotaro Fujii; Maxim Avdeev; Masatomo Yashima
Communications Materials, 2022年07月12日, [査読有り] - Simultaneous Reduction of Proton Conductivity and Enhancement of Oxide-Ion Conductivity by Aliovalent Doping in Ba7Nb4MoO20
Suzuki, Y.; Murakami, T.; Fujii, K.; Hester, J.R.; Yasui, Y.; Yashima, M.
Inorganic Chemistry, 2022年05月16日, [査読有り] - Synthesis of Hydride-Doped Perovskite Stannate with Visible Light Absorption Capability
Masashi Nakamura; Hirofumi Akamatsu; Kotaro Fujii; Yusuke Nambu; Yoichi Ikeda; Tomoki Kanazawa; Shunsuke Nozawa; Masatomo Yashima; Katsuro Hayashi; Kazuhiko Maeda
Inorganic Chemistry, 2022年05月02日, [査読有り] - First-Principles Analysis of the Oxide-Ion Conduction Mechanism in Si-Deficient Lanthanum Silicate Apatite
Yusuke Ogura; Tatsuya Yokoi; Kotaro Fujii; Masatomo Yashima; Katsuyuki Matsunaga
Journal of Physical Chemistry C, 2022年04月 - High Oxide-Ion Conductivity in a Hexagonal Perovskite-Related Oxide Ba
7 Ta3.7 Mo1.3 O20.15 with Cation Site Preference and Interstitial Oxide Ions
Taito Murakami; Toshiya Shibata; Yuta Yasui; Kotaro Fujii; James R. Hester; Masatomo Yashima
Small, 2022年03月10日 - Oxide-ion and proton conductivity of the ordered perovskite BaY
1/3 Ga2/3 O2.5
Kei Saito; Kotaro Fujii; Masatomo Yashima
Journal of Solid State Chemistry, 2022年02月 - Ruddlesden-Popper Oxychlorides Ba
3 Y2 O5 Cl2 , Sr3 Sc2 O5 Cl2 , and Sr2 ScO3 Cl: First Examples of Oxide-Ion-Conducting Oxychlorides
Hiroshi Yaguchi; Kotaro Fujii; Yoshinori Tsuchiya; Hiraku Ogino; Yoshihiro Tsujimoto; Masatomo Yashima
ACS Applied Energy Materials, 2022年01月24日 - Na+diffusion mechanism and transition metal substitution in tunnel-type manganese-based oxides for Na-ion rechargeable batteries
Irene Quinzeni; Kotaro Fujii; Marcella Bini; Masatomo Yashima; Cristina Tealdi
Materials Advances, 2022年01月21日 - Effect of La vacancies on the oxide-ion conduction in lanthanum silicate apatites
Yusuke Ogura; Tatsuya Yokoi; Kotaro Fujii; Masatomo Yashima; Katsuyuki Matsunaga
Solid State Ionics, 2021年12月15日 - Hydride-based antiperovskites with soft anionic sublattices as fast alkali ionic conductors
Shenghan Gao; Thibault Broux; Susumu Fujii; C{\'{e } }dric Tassel; Kentaro Yamamoto; Yao Xiao; Itaru Oikawa; Hitoshi Takamura; Hiroki Ubukata; Yuki Watanabe; Kotaro Fujii; Masatomo Yashima; Akihide Kuwabara; Yoshiharu Uchimoto; Hiroshi Kageyama
Nature Communications, 2021年12月 - High oxide-ion conductivity through the interstitial oxygen site in Ba7Nb4MoO20-based hexagonal perovskite related oxides
Masatomo Yashima; Takafumi Tsujiguchi; Yuichi Sakuda; Yuta Yasui; Yu Zhou; Kotaro Fujii; Shuki Torii; Takashi Kamiyama; Stephen J. Skinner
Nature Communications, 2021年12月 - Site-selective Eu3+ Luminescence in Monoclinic Phase of YSiO2N
Y. Kitagawa; J. Ueda; K Fujii; M. Yashima; S. Funahashi; T. Nakanishi; T. Takeda; N. Hirosaki; K. Hongo; R. Maezono; S. Tanabe
Chem. Mater., 2021年11月, [査読有り] - Electrochemical Crystal Growth of Titanium Oxyfluorides—A Strategy for Development of Electron-Doped Materials
Yusuke Chiba; Kengo Shibata; Hiroshi Takatsu; Kotaro Fujii; Miwa Saito; Hiroshi Kageyama; Kazuhiko Maeda; Masatomo Yashima; Teruki Motohashi
Inorganic Chemistry, 2021年08月31日 - Kinetically Stabilized Cation Arrangement in Li 3 YCl 6 Superionic Conductor during Solid‐State Reaction
Hiroaki Ito; Kazuki Shitara; Yongming Wang; Kotaro Fujii; Masatomo Yashima; Yosuke Goto; Chikako Moriyoshi; Nataly Carolina Rosero‐Navarro; Akira Miura; Kiyoharu Tadanaga
Advanced Science, 2021年08月17日 - Experimental Visualization of the Interstitialcy Diffusion of Anions in the LaOF-Based Oxyfluoride La0.9Sr0.1O0.45F2
Keisuke Hibino; Mahiro Tanaka; Satoshi Kozakai; Kotaro Fujii; Tatsumi Ishihara; James R. Hester; Masatomo Yashima
ACS Applied Energy Materials, 2021年08月16日 - Mixed alkali-ion transport and storage in atomic-disordered honeycomb layered NaKNi2TeO6.
Titus Masese; Yoshinobu Miyazaki; Josef Rizell; Godwill Mbiti Kanyolo; Chih-Yao Chen; Hiroki Ubukata; Keigo Kubota; Kartik Sau; Tamio Ikeshoji; Zhen-Dong Huang; Kazuki Yoshii; Teruo Takahashi; Miyu Ito; Hiroshi Senoh; Jinkwang Hwang; Abbas Alshehabi; Kazuhiko Matsumoto; Toshiyuki Matsunaga; Kotaro Fujii; Masatomo Yashima; Masahiro Shikano; Cédric Tassel; Hiroshi Kageyama; Yoshiharu Uchimoto; Rika Hagiwara; Tomohiro Saito
Nature communications, 2021年08月02日 - Sn-Based Perovskite with a Wide Visible-Light Absorption Band Assisted by Hydride Doping
Masashi Nakamura; Hiroshi Watanabe; Hirofumi Akamatsu; Kotaro Fujii; Masatomo Yashima; George Hasegawa; Miki Inada; Katsuro Hayashi; Kazuhiko Maeda
Chemistry of Materials, 2021年05月25日 - Ternary carbodiimide compound, Ba0.9Sr0.1NCN with distorted rutile-type structure
Yuji Masubuchi; Suzuka Miyazaki; Kotaro Fujii; Masatomo Yashima; Akira Miura; Mikio Higuchi
Journal of Solid State Chemistry, 2021年04月 - Protonic Conduction in the BaNdInO4 Structure Achieved by Acceptor Doping
Yu Zhou; Masahiro Shiraiwa; Masanori Nagao; Kotaro Fujii; Isao Tanaka; Masatomo Yashima; Laura Baque; Juan F. Basbus; Liliana V. Mogni; Stephen J. Skinner
Chemistry of Materials, 2021年03月23日 - High-temperature proton conductors based on the (110) layered perovskite BaNdScO4
Masahiro Shiraiwa; Takafusa Kido; Kotaro Fujii; Masatomo Yashima
Journal of Materials Chemistry A, 2021年 - Ionic conduction mechanism in Ca-doped lanthanum oxychloride
Kazuki Shitara; Akihide Kuwabara; Keisuke Hibino; Kotaro Fujii; Masatomo Yashima; James R. Hester; Masanori Umeda; Naoyoshi Nunotani; Nobuhito Imanaka
Dalton Transactions, 2021年 - Preparation and thermal stability of oxynitride perovskite solid solution Sr1-La Ta1-Ti O2N
Yuji Masubuchi; Sota Ohtaki; Kotaro Fujii; Masatomo Yashima; Mikio Higuchi; Shinichi Kikkawa
Journal of the European Ceramic Society, 2020年12月 - Strain-induced creation and switching of anion vacancy layers in perovskite oxynitrides
Takafumi Yamamoto; Akira Chikamatsu; Shunsaku Kitagawa; Nana Izumo; Shunsuke Yamashita; Hiroshi Takatsu; Masayuki Ochi; Takahiro Maruyama; Morito Namba; Wenhao Sun; Takahide Nakashima; Fumitaka Takeiri; Kotaro Fujii; Masatomo Yashima; Yuki Sugisawa; Masahito Sano; Yasushi Hirose; Daiichiro Sekiba; Craig M. Brown; Takashi Honda; Kazutaka Ikeda; Toshiya Otomo; Kazuhiko Kuroki; Kenji Ishida; Takao Mori; Koji Kimoto; Tetsuya Hasegawa; Hiroshi Kageyama
Nature Communications, 2020年12月 - Oxide-ion conduction in the Dion–Jacobson phase CsBi2Ti2NbO10−δ
Wenrui Zhang; Kotaro Fujii; Eiki Niwa; Masato Hagihala; Takashi Kamiyama; Masatomo Yashima
Nature Communications, 2020年12月, [査読有り] - Responsive Four-Coordinate Iron(II) Nodes in FePd(CN)
4
Ryo Ohtani; Hiromu Matsunari; Takafumi Yamamoto; Koji Kimoto; Masaaki Isobe; Kotaro Fujii; Masatomo Yashima; Susumu Fujii; Akihide Kuwabara; Yuh Hijikata; Shin ichiro Noro; Masaaki Ohba; Hiroshi Kageyama; Shinya Hayami
Angewandte Chemie - International Edition, 2020年10月19日 - Synthesis and Photoluminescence Properties of Rare-Earth-Activated Sr3–xAxAlO4H (A = Ca, Ba; x = 0, 1): New Members of Aluminate Oxyhydrides
Tong Wu; Kotaro Fujii; Taito Murakami; Masatomo Yashima; Satoru Matsuishi
Inorganic Chemistry, 2020年10月19日, [査読有り] - Responsive Four‐Coordinate Iron(II) Nodes in FePd(CN) 4
Ryo Ohtani; Hiromu Matsunari; Takafumi Yamamoto; Koji Kimoto; Masaaki Isobe; Kotaro Fujii; Masatomo Yashima; Susumu Fujii; Akihide Kuwabara; Yuh Hijikata; Shin‐ichiro Noro; Masaaki Ohba; Hiroshi Kageyama; Shinya Hayami
Angewandte Chemie, 2020年10月19日, [査読有り] - Synthesis of Three-Layer Perovskite Oxynitride K2Ca2Ta3O9N·2H2O and Photocatalytic Activity for H2 Evolution under Visible Light
Ya Tang; Kosaku Kato; Takayoshi Oshima; Hiroto Mogi; Akinobu Miyoshi; Kotaro Fujii; Kei-ichi Yanagisawa; Koji Kimoto; Akira Yamakata; Masatomo Yashima; Kazuhiko Maeda
Inorganic Chemistry, 2020年08月03日, [査読有り] - Single-crystal growth, structure and luminescence properties of Cs2HfCl3Br3
Shohei Kodama; Shunsuke Kurosawa; Kotaro Fujii; Taito Murakami; Masatomo Yashima; Jan Pejchal; Robert Kr{\'{a } }l; Martin Nikl; Akihiro Yamaji; Masao Yoshino; Satoshi Toyoda; Hiroki Sato; Yuji Ohashi; Kei Kamada; Yuui Yokota; Akira Yoshikawa
Optical Materials, 2020年08月 - High Catalytic Activity of Crystalline Lithium Calcium Silicate for Oxidative Coupling of Methane Originated from Crystallographic Joint Effects of Multiple Cations
Tomohiro Matsumoto; Miwa Saito; Satoshi Ishikawa; Kotaro Fujii; Masatomo Yashima; Wataru Ueda; Teruki Motohashi
ChemCatChem, 2020年04月06日, [査読有り] - Synthesis, structure, and luminescence properties of layered oxychloride Ba3Y2O5Cl2
Yuki Iwasa; Yu Su; Yoshinori Tsuchiya; Makoto Tatsuda; Kohji Kishio; Takayuki Yanagida; Fumi Takada; Taichiro Nishio; Yoshihiro Tsujimoto; Kotaro Fujii; Masatomo Yashima; Hiraku Ogino
Journal of Materials Chemistry C, 2020年 - Dion–Jacobson-type oxide-ion conductor CsLa2Ti2NbO10−δ without phase transitions
Wenrui Zhang; Kotaro Fujii; Tomohiro Ishiyama; Harue Kandabashi; Masatomo Yashima
Journal of Materials Chemistry A, 2020年 - Cation- and anion-ordered rutile-type derivative LiTeO3(OH)
Kotaro Fujii; Yume Yoshida; Yue Jin Shan; Keitaro Tezuka; Yoshiyuki Inaguma; Masatomo Yashima
Chemical Communications, 2020年, [査読有り] - A new structure family of oxide-ion conductors based on BaGdInO4
Hiroshi Yaguchi; Kotaro Fujii; Masatomo Yashima
Journal of Materials Chemistry A, 2020年, [査読有り] - Two-Dimensional Perovskite Oxynitride K2LaTa2O6N with an H+/K+ Exchangeability in Aqueous Solution to Form Stable Photocatalyst for Visible-Light H2 Evolution
Takayoshi Oshima; Tom Ichibha; Kenji Oqmhula; Keisuke Hibino; Hiroto Mogi; Shunsuke Yamashita; Kotaro Fujii; Yugo Miseki; Kenta Hongo; Daling Lu; Ryo Maezono; Kazuhiro Sayama; Masatomo Yashima; Koji Kimoto; Hideki Kato; Masato Kakihana; Hiroshi Kageyama; Kazuhiko Maeda
Angew. Chem., Int. Ed., 2020年01月, [査読有り] - Polymorphism and Temperature-Induced Phase Transitions of Na2CoP2O7
Maxim Avdeev; Chin-Wei Wang; Prabeer Barpanda; Kotaro Fujii; Masatomo Yashima
Inorganic Chemistry, 2019年12月16日, [査読有り] - Discovery of a Rare-Earth-Free Oxide-Ion Conductor Ca3Ga4O9 by Screening through Bond Valence-Based Energy Calculations, Synthesis, and Characterization of Structural and Transport Properties
Yuta Yasui; Eiki Niwa; Masahiro Matsui; Kotaro Fujii; Masatomo Yashima
Inorganic Chemistry, 2019年07月15日, [査読有り] - Synthesis of a Layered Niobium Oxynitride, Rb2NdNb2O6N·H2O, Showing Visible-Light Photocatalytic Activity for H2 Evolution
Haruki Wakayama; Keisuke Hibino; Kotaro Fujii; Takayoshi Oshima; Keiichi Yanagisawa; Yuuga Kobayashi; Koji Kimoto; Masatomo Yashima; Kazuhiko Maeda
Inorganic Chemistry, 2019年05月06日, [査読有り] - Synthesis of Ba1-x SrxYSi2O5N and Discussion based on Structure Analysis and DFT Calculation
Takuya Yasunaga; Makoto Kobayashi; Kenta Hongo; Kotaro Fujii; Shunsuke Yamamoto; Ryo Maezono; Masatomo Yashima; Masaya Mitsuishi; Hideki Kato; Masato Kakihana
J. Sold State Chem., 2019年05月, [査読有り] - Crystal structures of Ca4+x Y3-x Si7O15+x N5-x (0 ≤ x ≤ 1) comprising of an isolated [Si7(O,N)19] unit.
Kobayashi M; Yasunaga T; Kato H; Fujii K; Yashima M; Kakihana M
Acta crystallographica. Section E, Crystallographic communications, 2019年02月01日, [査読有り] - Preparation and photocatalytic activity of Mo-modified Ti-doped HAp
Kotaro Fujii
Applied Catalysis B: Environmental, 2019年, [査読有り] - Stepwise topochemical fluorination of SrCrO3 perovskite via a super-structured oxide
Yu Su; Yoshihiro Tsujimoto; Kotaro Fujii; Yuji Masubuchi; Hirohito Ohata; Hideo Iwai; Masatomo Yashima; Kazunari Yamaura
Chemical Communications, 2019年, [査読有り] - Thermal expansion and P-V-T equation of state of cubic silicon nitride
Norimasa Nishiyama; Kotaro Fujii; Eleonora Kulik; Masahiro Shiraiwa; Nico A. Gaida; Yuji Higo; Yoshinori Tange; Astrid Holzheid; Masatomo Yashima; Fumihiro Wakai
Journal of the European Ceramic Society, 2019年01月01日 - Crystal structure analysis and evidence of mixed anion coordination at the Ce3+ site in Y3Al2(Al,Si)(3)(O,N)(12) oxynitride garnet phosphor
Kotaro Fujii
Journal of Materials Chemistry C, 2019年, [査読有り] - Direct evidence for two-dimensional oxide-ion diffusion in the hexagonal perovskite-related oxide Ba3MoNbO8.5–δ
Masatomo Yashima; Takafumi Tsujiguchi; Kotaro Fujii; Eiki Niwa; Shunta Nishioka; James R. Hester; Kazuhiko Maeda
Journal of Material Chemistry A, 2019年, [査読有り] - Redshift and thermal quenching of Ce3+ emission in (Gd, Y)
3 (Al, Si)5 (O, N)12 oxynitride garnet phosphors
Kazuki Asami; Jumpei Ueda; Masahiro Shiraiwa; Kotaro Fujii; Masatomo Yashima; Setsuhisa Tanabe
Optical Materials, 2019年01月, [査読有り] - Crystal structure analysis and evidence of mixed anion coordination at the Ce 3+ site in Y
3 Al2 (Al,Si)3 (O,N)12 oxynitride garnet phosphor
Kazuki Asami; Masahiro Shiraiwa; Jumpei Ueda; Kotaro Fujii; Kenta Hongo; Ryo Maezono; Mikhail G. Brik; Masatomo Yashima; Setsuhisa Tanabe
Journal of Materials Chemistry C, 2019年, [査読有り] - Ce4+-Based Compounds Capable of Photoluminescence by Charge Transfer Excitation under Near-Ultraviolet–Visible Light
Dawei Wen; Hideki Kato; Makoto Kobayashi; Shunsuke Yamamoto; Masaya Mitsuishi; Kotaro Fujii; Masatomo Yashima; Masato Kakihana
Inorganic Chemistry, 2018年12月03日, [査読有り] - Discovery and development of BaNdInO4 —A brief review—
Kotaro Fujii; Masatomo Yashima
J. Ceram. Soc. Jpn.,, 2018年10月, [査読有り] - Structural Change in SrSiO3 Induced by Introduction of Nitrogen
Kotaro Fujii
Chemistry Letters, 2018年10月, [査読有り] - Function of Tetrahedral ZnS3O Building Blocks in the Formation of SrZn2S2O: A Phase Matchable Polar Oxysulfide with a Large Second Harmonic Generation Response
Kotaro Fujii
Chemistry of Materials, 2018年09月25日, [査読有り] - Chemical Pressure-Induced Anion Order–Disorder Transition in LnHO Enabled by Hydride Size Flexibility
Hiroki Yamashita; Thibault Broux; Yoji Kobayashi; Fumitaka Takeiri; Hiroki Ubukata; Tong Zhu; Michael A. Hayward; Kotaro Fujii; Masatomo Yashima; Kazuki Shitara; Akihide Kuwabara; Taito Murakami; Hiroshi Kageyama
Journal of the American Chemical Society, 2018年09月12日, [査読有り] - Undoped Layered Perovskite Oxynitride Li2 LaTa2 O6 N for Photocatalytic CO2 Reduction with Visible Light.
Takayoshi Oshima; Tom Ichibha; Ken Sinkou Qin; Kanemichi Muraoka; Junie Jhon M Vequizo; Keisuke Hibino; Ryo Kuriki; Shunsuke Yamashita; Kenta Hongo; Tomoki Uchiyama; Kotaro Fujii; Daling Lu; Ryo Maezono; Akira Yamakata; Hideki Kato; Koji Kimoto; Masatomo Yashima; Yoshiharu Uchimoto; Masato Kakihana; Osamu Ishitani; Hiroshi Kageyama; Kazuhiko Maeda
Angewandte Chemie (International ed. in English), 2018年07月02日, [査読有り] - High Pressure Synthesis of Hydride-fluoride Pyrochlore NaCaMg2F7-xHx
Kotaro Fujii
Chemistry Letters, 2018年07月, [査読有り] - Single Crystal Growth of Sillen-Aurivillius Perovskite Oxyhalides Bi4NbO8X (X = Cl, Br)
Zhong Chengchao; Kato Daichi; Takeiri Fumitaka; Fujii Kotaro; Yashima Masatomo; Nishiwaki Emily; Fujii Yasuhiro; Koreeda Akitoshi; Tassel Cedric; Abe Ryu; Kageyama Hiroshi
INORGANICS, 2018年06月, [査読有り] - Synthesis, Crystal Structure, and Optical Properties of Layered Perovskite Scandium Oxychlorides: Sr2ScO3Cl, Sr3Sc2O5Cl2, and Ba3Sc2O5Cl2
Yu Su; Yoshihiro Tsujimoto; Kotaro Fujii; Makoto Tatsuta; Kengo Oka; Masatomo Yashima; Hiraku Ogino; Kazunari Yamaura
Inorganic Chemistry, 2018年05月07日, [査読有り] - Crystal structure and electrical conductivity of BaR
2 ZnO5 (R = Sm, Gd, Dy, Ho, and Er)®a new structure family of oxide-ion conductors
Keigo Nakamura; Kotaro Fujii; Eiki Niwa; Masatomo Yashima
Journal of the Ceramic Society of Japan, 2018年05月01日 - Experimental visualization of oxide-ion diffusion paths in pyrochlore-type Yb2Ti2O7
Kotaro Fujii
Journal of the Ceramic Society of Japan, 2018年05月01日 - New Precursor Route Using a Compositionally Flexible Layered Oxide and Nanosheets for Improved Nitrogen Doping and Photocatalytic Activity
Kazuhiko Maeda; Yuki Tokunaga; Keisuke Hibino; Kotaro Fujii; Hiroyuki Nakaki; Tomoki Uchiyama; Miharu Eguchi; Daling Lu; Shintaro Ida; Yoshiharu Uchimoto; Masatomo Yashima
ACS Applied Energy Materials, 2018年04月23日, [査読有り] - Selective Hydride Occupation in BaVO3–xHx (0.3 ≤ x ≤ 0.8) with Face- and Corner-Shared Octahedra
Takafumi Yamamoto; Kazuki Shitara; Shunsaku Kitagawa; Akihide Kuwabara; Masahiro Kuroe; Kenji Ishida; Masayuki Ochi; Kazuhiko Kuroki; Kotaro Fujii; Masatomo Yashima; Craig M. Brown; Hiroshi Takatsu; Cedric Tassel; Hiroshi Kageyama
Chemistry of Materials, 2018年03月13日, [査読有り] - A systematic evaluation of the role of lanthanide elements in functional complex oxides; implications for energy conversion devices
Ji Wu; Kotaro Fujii; Masatomo Yashima; Aleksandar Staykov; Taner Akbay; Tatsumi Ishihara; John A. Kilner
Journal of Materials Chemistry A, 2018年, [査読有り] - High oxide-ion conductivity in Si-deficient La9.565(Si5.826□0.174)O26 apatite without interstitial oxygens due to the overbonded channel oxygens
Kotaro Fujii; Masatomo Yashima; Keisuke Hibino; Masahiro Shiraiwa; Koichiro Fukuda; Susumu Nakayama; Nobuo Ishizawa; Takayasu Hanashima; Takashi Ohhara
Journal of Materials Chemistry A, 2018年, [査読有り] - A new structure family of oxide-ion conductors Ca0.8Y2.4Sn0.8O6 discovered by a combined technique of the bond-valence method and experiments
Ryota Inoue; Kotaro Fujii; Masahiro Shiraiwa; Eiki Niwa; Masatomo Yashima
Dalton Transactions, 2018年, [査読有り] - Crystal-structure and electron-density analyses of the perovskite-type oxynitrides BaNbO2N and SrNbO2N through synchrotron X-ray powder diffraction
Fujii Kotaro; Shimada Kazuho; Yashima Masatomo
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2017年11月, [査読有り] - New Oxide-Ion Conductor SrYbInO4 with Partially Cation-Disordered CaFe2O4-Type Structure
Ayaka Fujimoto; Masatomo Yashima; Kotaro Fujii; James R. Hester
The Journal of Physical Chemistry C, 2017年10月05日, [査読有り] - Weak ferromagnetic ordering in brownmillerite Ca2Fe2O5 and its effect on electric field gradients
Isao Kagomiya; Yuki Hirota; Ken-ichi Kakimoto; Kotaro Fujii; Masahiro Shiraiwa; Masatomo Yashima; Akio Fuwa; Shin Nakamura
Physical Chemistry Chemical Physics, 2017年, [査読有り] - Structures, electron density and characterization of novel photocatalysts, (BaTaO2N)1−x(SrWO2N)x solid solutions
Keisuke Hibino; Masatomo Yashima; Takayoshi Oshima; Kotaro Fujii; Kazuhiko Maeda
Dalton Transactions, 2017年, [査読有り] - Synthesis, structure, and photoluminescence of a novel oxynitride baysi2o5n activated by Eu2+ and Ce3+
Kobayashi, M.; Yasunaga, T.; Sato, H.; Kato, H.; Fujii, K.; Yashima, M.; Kakihana, M.
Chemistry Letters, 2017年, [査読有り] - Control of the reversibility during boronic ester formation: application to the construction of ferrocene dimers and trimers
Ono, K.; Tohyama, Y.; Uchikura, T.; Kikuchi, Y.; Fujii, K.; Uekusa, H.; Iwasawa, N.
Dalton Transactions, 2017年, [査読有り] - Open channels in porous molecular crystals: host-guest structures and interactions
Kotaro Fujii
Acta Crystallographica Section A: Foundations and Advances, 2017年, [査読有り] - Crystal Structure and Oxide-Ion Conductivity of Ba1+xNd1-xInO4-x/2
Masahiro Shiraiwa; Kotaro Fujii; Yuichi Esaki; Su Jae Kim; Seongsu Lee; Masatomo Yashima
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2017年, [査読有り] - Reactions of Highly Branched Perfluoroolefins with (Pentafluorophenyl)trimethylsilane: Characterization of the Unique Structural Properties of Perfluorinated Super-Congested Systems
Nishida, M.; Fukaya, H.; Hayakawa, Y.; Ono, T.; Fujii, K.; Yasuda, N.; Uekusa, H.
Asian Journal of Organic Chemistry, 2016年, [査読有り] - Hydrothermal Synthesis, Crystal Structure, and Superconductivity of a Double-Perovskite Bi Oxide
Rubel, M.H.K.; Takei, T.; Kumada, N.; Ali, M.M.; Miura, A.; Tadanaga, K.; Oka, K.; Azuma, M.; Yashima, M.; Fujii, K.; Magome, E.; Moriyoshi, C.; Kuroiwa, Y.; Hester, J.R.; Avdeev, M.
Chemistry of Materials, 2016年, [査読有り] - Structural origin of the anisotropic and isotropic thermal expansion of K<inf>2</inf>NiF<inf>4</inf>-type LaSrAlO<inf>4</inf> and Sr<inf>2</inf>TiO<inf>4</inf>
Kawamura, K.; Yashima, M.; Fujii, K.; Omoto, K.; Hibino, K.; Yamada, S.; Hester, J.R.; Avdeev, M.; Miao, P.; Torii, S.; Kamiyama, T.
Inorganic Chemistry, 2015年, [査読有り] - Structure determination from powder X-ray diffraction data of black azo (hydrazone) pigments
Otani, J.; Matsumura, M.; Fujii, K.; Uekusa, H.
Chemistry Letters, 2015年, [査読有り] - Hydration/Dehydration phase transition mechanism in organic crystals investigated by ab initio crystal structure determination from powder diffraction data
Fujii, K.; Uekusa, H.
Advances in Organic Crystal Chemistry: Comprehensive Reviews 2015, 2015年, [査読有り] - Improved oxide-ion conductivity of NdBaInO<inf>4</inf> by Sr doping
Fujii, K.; Shiraiwa, M.; Esaki, Y.; Yashima, M.; Kim, S.J.; Lee, S.
Journal of Materials Chemistry A, 2015年, [査読有り] - Defect induced sodium disorder and ionic conduction mechanism in Na1.82Mg1.09P2O7
Liu, G.; Nishimura, S.-I.; Chung, S.C.; Fujii, K.; Yashima, M.; Yamada, A.
Journal of Materials Chemistry A, 2014年, [査読有り] - Diffusion path and conduction mechanism of protons in hydroxyapatite
Yashima, M.; Kubo, N.; Omoto, K.; Fujimori, H.; Fujii, K.; Ohoyama, K.
Journal of Physical Chemistry C, 2014年, [査読有り] - New perovskite-related structure family of oxide-ion conducting materials NdBaInO
4
Fujii, K.; Esaki, Y.; Omoto, K.; Yashima, M.; Hoshikawa, A.; Ishigaki, T.; Hester, J.R.
Chemistry of Materials, 2014年, [査読有り] - Almost perfect frustration in the dimer magnet Ba2CoSi2O6Cl2 103701
Tanaka, H.; Kurita, N.; Okada, M.; Kunihiro, E.; Shirata, Y.; Fujii, K.; Uekusa, H.; Matsuo, A.; Kindo, K.; Nojiri, H.
Journal of the Physical Society of Japan, 2014年, [査読有り] - Structural understanding of solid-state photodimerization reactions of cinnamic amide derivatives in terms of reaction cavities-color developer for thermosensitive paper
Kodama, S.; Johmoto, K.; Sekine, A.; Fujii, K.; Uekusa, H.
CrystEngComm, 2013年, [査読有り] - Solid-state hydration/dehydration of erythromycin a investigated by ab initio powder X-ray diffraction analysis: Stoichiometric and nonstoichiometric dehydrated hydrate
Fujii, K.; Aoki, M.; Uekusa, H.
Crystal Growth and Design, 2013年, [査読有り] - Reversible solid state redox of an octacyanometallate-bridged coordination polymer by electrochemical ion insertion/extraction
Okubo, M.; Kagesawa, K.; Mizuno, Y.; Asakura, D.; Hosono, E.; Kudo, T.; Zhou, H.; Fujii, K.; Uekusa, H.; Nishimura, S.-I.; Yamada, A.; Okazawa, A.; Kojima, N.
Inorganic Chemistry, 2013年, [査読有り] - Experimental visualization of the Bi-O covalency in ferroelectric bismuth ferrite (BiFeO
3 ) by synchrotron X-ray powder diffraction analysis
Fujii, K.; Kato, H.; Omoto, K.; Yashima, M.; Chen, J.; Xing, X.
Physical Chemistry Chemical Physics, 2013年, [査読有り] - Polymorphic and pseudomorphic transformation behavior of acyclovir based on thermodynamics and crystallography
Terada, K.; Kurobe, H.; Ito, M.; Yoshihashi, Y.; Yonemochi, E.; Fujii, K.; Uekusa, H.
Journal of Thermal Analysis and Calorimetry, 2013年, [査読有り] - Mechanism of dehydration-hydration processes of lisinopril dihydrate investigated by ab initio powder X-ray diffraction analysis
Fujii, K.; Uekusa, H.; Itoda, N.; Yonemochi, E.; Terada, K.
Crystal Growth and Design, 2012年, [査読有り] - Guest-induced self-assembly of a macrocyclic boronic ester containing diarylethene units: Enhancement of photoresponsivity
Iwasawa, N.; Takahagi, H.; Ono, K.; Fujii, K.; Uekusa, H.
Chemical Communications, 2012年, [査読有り] - Cocrystallization and amorphization induced by drug-excipient interaction improves the physical properties of acyclovir
Masuda, T.; Yoshihashi, Y.; Yonemochi, E.; Fujii, K.; Uekusa, H.; Terada, K.
International Journal of Pharmaceutics, 2012年, [査読有り] - Cocrystal形成によるアシクロビルの溶解性改善に関する研究
李 丹瑜; 吉橋 泰生; 米持 悦生; 寺田 勝英; 藤井 孝太郎; 植草 秀裕
日本薬剤学会年会講演要旨集, 2011年05月 - Supramolecular networks in crystalline inclusion complexes formed from a new host: 2,2-bis(4-hydroxy-3-phenylphenyl)-1 h -indene-1,3(2 h)-dione
Kasugai, K.; Hashimoto, S.; Imai, K.; Sakon, A.; Fujii, K.; Uekusa, H.; Hayashi, N.; Kobayashi, K.
Crystal Growth and Design, 2011年, [査読有り] - In situ observation and mechanistic elucidation of metastable colored species in crystalline state photochromism of trans-biindenylidenedione
Fujii, K.; Aruga, K.; Sekine, A.; Uekusa, H.; Sohno, K.; Tanaka, K.
CrystEngComm, 2011年, [査読有り] - Structure determination from powder X-ray diffraction data of a new polymorph of a high-density organic hydrate material, with an assessment of hydrogen-bond disorder by Rietveld refinement
Lim, G.K.; Fujii, K.; Harris, K.D.M.; Apperley, D.C.
Crystal Growth and Design, 2011年, [査読有り] - Cooperativity in solid-state squaramides
Prohens, R.; Portell, A.; Puigjaner, C.; Tomàs, S.; Fujii, K.; Harris, K.D.M.; Alcobé, X.; Font-Bardia, M.; Barbas, R.
Crystal Growth and Design, 2011年, [査読有り] - Study of the pseudo-crystalline transformation from form I to form II of thiamine hydrochloride (vitamin B1)
Masuda, K.; Ishige, T.; Yamada, H.; Fujii, K.; Uekusa, H.; Miura, K.; Yonemochi, E.; Terada, K.
Chemical and Pharmaceutical Bulletin, 2011年, [査読有り] - Metastable polymorphic form of isopropylbenzophenone derivative directly obtained by the solid-state photoreaction investigated by ab initio powder X-ray diffraction analysis
Fujii, K.; Uekusa, H.; Fukano, M.; Koshima, H.
CrystEngComm, 2011年, [査読有り] - Exploiting powder X-ray diffraction for direct structure determination in structural biology: The P2X4 receptor trafficking motif YEQGL
Fujii, K.; Young, M.T.; Harris, K.D.M.
Journal of Structural Biology, 2011年, [査読有り] - Potential of synchrotron X-ray powder diffractometry for detection and quantification of small amounts of crystalline drug substances in pharmaceutical tablets
Yamada, H.; Masuda, K.; Ishige, T.; Fujii, K.; Uekusa, H.; Miura, K.; Yonemochi, E.; Terada, K.
Journal of Pharmaceutical and Biomedical Analysis, 2011年, [査読有り] - Structural chemistry of a new chiral anhydrous phase of Ru(bipy)
3 (ClO4 )2 established from powder X-ray diffraction analysis
Cheung, E.Y.; Fujii, K.; Guo, F.; Harris, K.D.M.; Hasebe, S.; Kuroda, R.
Crystal Growth and Design, 2011年, [査読有り] - Reversible color switching of an organic crystal induced by organic solvent vapors
Fujii, K.; Sakon, A.; Sekine, A.; Uekusa, H.
Crystal Growth and Design, 2011年, [査読有り] - Pseudo-polymorphic transition of pharmaceutical crystals revealed by SDPD method
Kotaro Fujii
Acta Crystallographica Section A: Foundations and Advances, 2011年 - Crystal Structural change by guest sorption/release processes of the macrocyclic boronic ester
Kotaro Fujii
Acta Crystallographica Section A: Foundations and Advances, 2011年 - Hexaradialenes by successive ring openings of tris(alkoxytricyclobutabenzenes): Synthesis and characterization
Shinozaki, S.; Hamura, T.; Ibusuki, Y.; Fujii, K.; Uekusa, H.; Suzuki, K.
Angewandte Chemie - International Edition, 2010年, [査読有り] - A solid-state dehydration process in an organic material associated with substantial hydrogen-bond reorganization, investigated by powder X-ray diffraction
Martí-Rujas, J.; Morte-Ródenas, A.; Guo, F.; Thomas, N.; Fujii, K.; Kariuki, B.M.; Harris, K.D.M.
Crystal Growth and Design, 2010年, [査読有り] - Selective transformation pathways between crystalline forms of an organic material established from powder X-ray diffraction analysis
Fujii, K.; Ashida, Y.; Uekusa, H.; Guo, F.; Harris, K.D.M.
Chemical Communications, 2010年, [査読有り] - Potassium clavulanate
Fujii, K.; Toyota, K.; Sekine, A.; Uekusa, H.; Nugrahani, I.; Asyarie, S.; Soewandhi, N.S.; Ibrahim, S.
Acta Crystallographica Section E: Structure Reports Online, 2010年, [査読有り] - Arrays of P=O dipoles as a recurrent structural motif in bis-diphenylphosphine oxides, established from powder x-ray diffraction
Lim, G.K.; Zhou, Z.; Fujii, K.; Calcagno, P.; Tedesco, E.; Kitchin, S.J.; Kariuki, B.M.; Philp, D.; Harris, K.D.M.
Crystal Growth and Design, 2010年, [査読有り] - Direct structure elucidation by powder X-ray diffraction of a metal-organic framework material prepared by solvent-free grinding
Fujii, K.; Garay, A.L.; Hill, J.; Sbircea, E.; Pan, Z.; Xu, M.; Apperley, D.C.; James, S.L.; Harris, K.D.M.
Chemical Communications, 2010年, [査読有り] - Physicochemical understanding of polymorphism and solid-state dehydration/rehydration processes for the pharmaceutical material acrinol, by Ab initio powder X-ray diffraction analysis and other techniques
Fujii, K.; Uekusa, H.; Itoda, N.; Hasegawa, G.; Yonemochi, E.; Terada, K.; Pan, Z.; Harris, K.D.M.
Journal of Physical Chemistry C, 2010年, [査読有り] - Cocrystalline phase transformation of binary mixture of trimethoprim and sulfamethoxazole by slurry technique
Zaini, E.; Sumirtapura, Y.C.; Soew; hi, S.N.; Halim, A.; Uekusa, H.; Fujii, K.
Asian Journal of Pharmaceutical and Clinical Research, 2010年, [査読有り] - Magnetic susceptibilities in a family of S= 1 2 kagome antiferromagnets
Ono, T.; Morita, K.; Yano, M.; Tanaka, H.; Fujii, K.; Uekusa, H.; Narumi, Y.; Kindo, K.
Physical Review B - Condensed Matter and Materials Physics, 2009年, [査読有り] - Reevaluation of solubility of tolbutamide and polymorphic transformation from Form I to unknown crystal form
Hasegawa, G.; Komasaka, T.; Bando, R.; Yoshihashi, Y.; Yonemochi, E.; Fujii, K.; Uekusa, H.; Terada, K.
International Journal of Pharmaceutics, 2009年, [査読有り] - Partial ferromagnetic ordering and indirect exchange interaction in the spatially anisotropic kagome antiferromagnet Cs
2 Cu3 CeF12
Amemiya, T.; Yano, M.; Morita, K.; Umegaki, I.; Ono, T.; Tanaka, H.; Fujii, K.; Uekusa, H.
Physical Review B - Condensed Matter and Materials Physics, 2009年, [査読有り] - New S=1/2 Kagomé antiferromagnets A
2 Cu3 SnF12 : A=Cs and Rb
Ono T; Morita K; Yano M; Tanaka H; Fujii K; Uekusa H; Narumi Y; Kindo K
Journal of Physics: Conference Series, 2009年, [査読有り] - Performance of the micro-PIC gaseous area detector in small-angle X-ray scattering experiments
Hattori, K.; Tsuchiya, K.; Ito, K.; Okada, Y.; Fujii, K.; Kubo, H.; Miuchi, K.; Takata, M.; Tanimori, T.; Uekusa, H.
Journal of Synchrotron Radiation, 2009年, [査読有り] - Vapour induced crystalline transformation investigated by ab initio powder x-ray diffraction analysis
Fujii, K.; Ashida, Y.; Uekusa, H.; Hirano, S.; Toyota, S.; Toda, F.; Pan, Z.; Harris, K.D.M.
Crystal Growth and Design, 2009年, [査読有り] - Chiral tetraazamacrocycles having four pendant-arms
Kamioka, S.; Takahashi, T.; Kawauchi, S.; Adachi, H.; Mori, Y.; Fujii, K.; Uekusa, H.; Doi, T.
Organic Letters, 2009年, [査読有り] - DIHYDROCHALCONE DESIGNED FROM METHYLOPHIOPOGONANONE B STRONGLY INHIBITS HYPOXIA-INDUCIBLE FACTOR (HIF)-1 alpha ACTIVITY
Kotaro Fujii
Heterocycles, 2009年 - Single-crystal-to-single-crystal photocyclization of 4-(2,4,6-triisopropylbenzoyl)benzoic acid in the salt crystal with (S)-phenylethylamine
Koshima, H.; Ide, Y.; Fukano, M.; Fujii, K.; Uekusa, H.
Tetrahedron Letters, 2008年, [査読有り] - Singlet ground state and spin gap in S = 1/2 Kagomé antiferromagnet Rb
2 Cu3 SnF12
Morita K; Yano M; Ono T; Tanaka H; Fujii K; Uekusa H; Narumi Y; Kindo K
Journal of the Physical Society of Japan, 2008年, [査読有り] - Crystal structure solution of organic compounds from X-ray powder diffraction data
Tsue, H.; Horiguchi, M.; Tamura, R.; Fujii, K.; Uekusa, H.
Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry, 2007年, [査読有り] - Erratum: Solid-state phase transition of an inclusion complex of 5-methyl-2-pyridone with 1,3,5-benzenetricarboxylic acid (Angewandte Chemie-International Edition (2006) 45 (6013-6016) DOI: 10.1002/anie.200600845)
Hirano, S.; Toyota, S.; Toda, F.; Fujii, K.; Uekusa, H.
Angewandte Chemie - International Edition, 2007年 - Solid-state phase transition of an inclusion complex of 5-methyl-2-pyridone with 1,3,5-benzenetricarboxylic acid
Hirano, S.; Toyota, S.; Toda, F.; Fujii, K.; Uekuasa, H.
Angewandte Chemie - International Edition, 2006年, [査読有り] - Multiple pentafluorophenylation of 2,2,3,3,5,6,6-heptafluoro-3,6-dihydro- 2H-1,4-oxazine with an organosilicon reagent: NMR and DFT structural analysis of oligo(perfluoroaryl) compounds
Nishida, M.; Fukaya, H.; Hayakawa, Y.; Ono, T.; Fujii, K.; Uekusa, H.
Helvetica Chimica Acta, 2006年, [査読有り]
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日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM), 2020年 - 新規層状酸塩化物Ba3Y2O5Cl2:Eu3+の蛍光特性
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日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM), 2019年 - 六方晶ペロブスカイト関連酸化物Ba_3MoNbO_8-δとその関連物質の酸化物イオン拡散経路と伝導率【JST・京大機械翻訳】
SAKUDA Yuichi; TUJIGUCHI Takafumi; FUJII Kotaro; NIWA Eiki; MURAKAMI Taito; NISHIOKA Shunta; NISHIOKA Shunta; HESTER James R.; MAEDA Kazuhiko; YASHIMA Masatomo
日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM), 2019年 - 混合アニオン化合物および酸化物の構造,電子密度および拡散経路【JST・京大機械翻訳】
YASHIMA Masatomo; HIBINO Keisuke; TSUJIGUCHI Takafumi; FUJII Kotaro; MURAKAMI Taito; MAEDA Kazuhiko
日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM), 2019年 - 高温中性子回折による酸化物イオン伝導体BaNdInO_4の結晶構造解析【JST・京大機械翻訳】
SHIGA Hitomi; SHIRAIWA Masahiro; ZHANG Wenrui; YASUI Yuta; TEJIMA Hiroaki; FUJII Kotaro; MURAKAMI Taito; HAGIHALA Masato; TORII Shuki; MIAO Ping; KAMIYAMA Takashi; YASHIMA Masatomo
日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM), 2019年 - Ba3MoNbO8.5における酸化物イオン拡散のメカニズム
作田祐一; 辻口峰史; 藤井孝太郎; 丹羽栄貴; 村上泰斗; 西岡駿太; 西岡駿太; HESTER James R.; 前田和彦; 八島正知
日本結晶学会年会講演要旨集, 2019年 - Sillen-Aurivillius型層状ペロブスカイト化合物の単結晶育成
ZHONG Chengchao; 加藤大地; 阿部竜; 陰山洋; 藤井孝太郎; 八島正知; 藤井康裕; 是枝聡肇
日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM), 2018年 - Aサイト秩序型二重ペロブスカイトCaZnTi2O6の高圧合成,構造および誘電性
森紘夢; 植田紘一郎; 稲熊宜之; 藤井孝太郎; 八島正知
日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM), 2018年 - Pr/Ba cation-disordered perovskite Pr
2 /3 Ba1 /3 CoO3 1δ as a new bifunctional electrocatalyst for oxygen reduction and oxygen evolution reactions
Zhang W; Shiraiwa M; Wang N; Ma T; Fujii K; Niwa E; Yashima M
Journal of the Ceramic Society of Japan, 2018年 - 「結合原子価法による新型イオン伝導体の探索」
八島正知; 藤井孝太郎; 丹羽栄貴
合金状態図第172委員会研究報告書, 2017年 - 「CO2吸収材料Li4SiO4の熱力学的及び速度論的解析」
丹羽栄貴; 神庭伸吾; 藤井孝太郎; 橋本拓也; 八島正知
合金状態図第172委員会研究報告書, 2017年 - 「高温における精密構造解析法の開発と展開」
八島正知; 藤井孝太郎; 丹羽栄貴; 尾本和樹; 上田孝志朗; 山田駿太郎; 白岩大裕; 斎藤圭汰; 藤本絢香
合金状態図第172委員会研究報告書, 2017年 - Ba2-xLaxFe2O5+δの構造相転移および電気伝導機構
丹羽栄貴; 丹羽栄貴; 佐藤翼; 大木葉隆史; 小豆川勝見; 松尾基之; 藤代史; 藤井孝太郎; 橋本拓也; 八島正知
電気化学会大会講演要旨集(CD-ROM), 2016年03月23日 - Ca2R3Ta3O14(R=Y,Ho,Dy)の電気的特性および結晶構造
海野航; 藤井孝太郎; 丹羽栄貴; 山本直紀; 三宮工; 八島正知
日本セラミックス協会年会講演予稿集(CD-ROM), 2016年03月01日 - プロトン伝導体BaCe1-xRxO3-δ(R:希土類)の格子体積と光学的特性
丹羽栄貴; 藤井孝太郎; 八島正知; 保坂友美; 尾上貴弘; 畠山義清; 十代健; 橋本拓也; 藤代史
日本セラミックス協会年会講演予稿集(CD-ROM), 2016年03月01日 - 新物質ASr2Ga11O20(A=Pr,Nd)およびABa2Ga11O20(A=La,Pr,Nd,Sm)の結晶構造と電気的特性
山田駿太郎; 藤井孝太郎; 丹羽栄貴; 八島正知
日本セラミックス協会年会講演予稿集(CD-ROM), 2016年03月01日 - 結晶構造に基づいた物質構造特許新構造ファミリーのイオン伝導体の発見
八島正知; 藤井孝太郎; 尾本和樹; 上田孝志朗; 山田駿太郎; 齋藤圭汰; 藤本絢香; 江崎勇一; 齋藤千紘; 中島靖
日本セラミックス協会年会講演予稿集(CD-ROM), 2016年03月01日 - Ruddlesden‐Popper相Sr3Ti2O7とLa2SrAl2O7における熱膨張の異方性
永峰翔太; 藤井孝太郎; 丹羽栄貴; 八島正知
日本セラミックス協会年会講演予稿集(CD-ROM), 2016年03月01日 - 「新しい層状構造を有する酸化物イオン伝導体の発見」
八島正知; 藤井孝太郎
CROSS, 2016年 - 9pBC-13 スピンダイマー磁性体Ba_2CoSi_2O_6Cl_2における殆ど完全なフラストレーション(9pBC フラストレーション(パイロクロア,クラスター),領域3(磁性))
田中 秀数; 栗田 伸之; 岡田 真喜子; 國弘 英二; 白田 雄高; 藤井 孝太郎; 植草 秀裕; 松尾 晶; 金道 浩一; 野尻 浩之
日本物理学会講演概要集, 2014年08月22日 - 「新構造ファミリーの酸化物イオン伝導性材料を発見」
藤井孝太郎; 八島正知
セラミックス, 2014年 - 「酸化物イオン伝導性を示す新しい構造ファミリーNdBaInO4の発見」
八島正知; 藤井孝太郎; 江崎勇一; 白岩大裕; 尾本和樹
合金状態図第172委員会研究報告書, 2014年 - 粉末X線回折データによるメチルドパ水和物の脱水メカニズムの研究
古田秀明; 皆川貴明; 佐近彩; 藤井孝太郎; 植草秀裕; 吉橋泰生; 米持悦生; 寺田勝英; 森山広思
日本薬学会年会要旨集(CD-ROM), 2013年 - 21aCD-8 S=1/2異方的スピンダイマー系Ba_2CoSi_2O_6Cl_2の結晶構造と磁性(21aCD 量子スピン系(クラスター),領域3(磁性,磁気共鳴))
國弘 英二; 白田 雄高; 田中 秀数; 藤井 孝太郎; 植草 秀裕
日本物理学会講演概要集, 2012年08月24日 - Acyclovir擬似結晶多形の多形転移と転移メカニズム
伊藤雅隆; 宮本隆史; 藤井孝太郎; 植草秀裕; 黒部裕之; 増田孝明; 吉橋泰生; 米持悦生; 寺田勝英
日本薬剤学会年会講演要旨集, 2011年 - 25pRE-10 異方的な交換相互作用ネットワークを有する籠目格子反強磁性体Cs_2Cu_3CeF_<12>における部分的強磁性秩序(フラストレーション系・スピングラス(カゴメ格子・スピングラス),領域3,磁性,磁気共鳴)
雨宮 泰樹; 梅垣 いづみ; 矢野 みどり; 森田 克洋; 小野 俊雄; 田中 秀数; 藤井 孝太郎; 植草 秀裕
日本物理学会講演概要集, 2009年08月18日 - 26aWL-13 S=1/2籠目格子反強磁性体A_2Cu_3MF_<12>(M=Zr,Hf,Sn ;A=Cs,Rb)の単結晶磁化測定(26aWL 量子スピン系(一次元系・二次元系),領域3(磁性,磁気共鳴))
森田 克洋; 矢野 みどり; 小野 俊雄; 田中 秀数; 藤井 孝太郎; 植草 秀裕; 鳴海 康雄; 金道 浩一
日本物理学会講演概要集, 2008年02月29日 - Dehydration process of lisinopril, investigated by ab initio powder crystal structure analysis
Kotaro Fujii; Hidehiro Uekusa; Gen Hasegawa; Etsuo Yonemochi; Katsuhide Terada
ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2008年 - 粉末X線回折データを用いる有機化合物の結晶構造解析
津江 広人; 堀口 雅弘; 田村 類; 藤井 孝太郎; 植草 秀裕
有機合成化学協会誌 : JOURNAL OF Synthetic Organic Chemistry JAPAN, 2007年12月01日 - 粉末X線回折による結晶構造解析に基づく相転移現象の解明
駒坂 太嘉雄; 藤井 孝太郎; 植草 秀裕; 吉橋 泰生; 米持 悦生; 寺田 勝英
薬剤学 = Journal of Pharmaceutical Science and Technology, Japan, 2007年05月10日 - トルブタミドI型結晶の構造転移と熱力学的変化
長谷川 玄; 吉橋 泰生; 米持 悦生; 寺田 勝英; 藤井 孝太郎; 植草 秀裕
薬剤学 = Journal of Pharmaceutical Science and Technology, Japan, 2007年05月10日