@article{CTT100926862, author = {Takehiro Koike and Hena Das and Kengo Oka and Yoshihiro Kusano and Fernando Cubillas and Francisco B. Bojorqez and Victor Emmanuel Alvarez-Montano and Shigekazu Ito and Kei Shigematsu and Hayato Togano and Ikuya Yamada and Hiroki Ishibashi and Kubota Yoshiki and Shigeo Mori and Noboru Kimizuka and Masaki Azuma}, title = {Pressure-Induced YbFe2O4-Type to Spinel Structural Change of InGaMgO4}, journal = {Solids}, year = 2024, } @article{CTT100910830, author = {Qiu min Liu and Hena Das and Takumi Nishikubo and Yuki Sakai and Ko Mibu and Tomoko Onoue and Takateru Kawakami and Tetsu Watanuki and Akihiko Machida and Xubin Ye and Jianhong Dai and Zhao Pan and Lei Hu and Satoshi Nakano and Masayuki Fukuda and Shiori Kihara and Koomok Lee and Takehiro Koike and Youwen Long and Masaki Azum}, title = {ressure Induced Amorphization of Pb2+ and Pb4+ in Perovskite PbFeO3}, journal = {Chemistry of Materials}, year = 2024, } @article{CTT100910829, author = {Haoting Zhao and Zhao Pan and Xi Shen and Jianfa Zhao and Dabiao Lu and Jie Zhang and Zhiwei Hu and Chang-Yang Kuo and Chien-Te Chen and Ting-Shan Chan and Christoph J. Sahle and Cheng Dong and Takumi Nishikubo and Takehiro Koike and Zun-Yi Deng and Jiawang Hong and Runze Yu and * Pu Yu and Masaki Azuma and Changqing Jin and Youwen Long}, title = {Antiferroelectricity-Induced Negative Thermal Expansion inDouble Perovskite Pb2CoMoO6}, journal = {Small}, year = 2023, } @article{CTT100886715, author = {Masayuki Fukuda and Hidenobu Murata and Takumi Nishikubo and Qiumin Liu and Koomok Lee and Takehiro Koike and Yuma Takahashi and Saori I. Kawaguchi and Naohisa Hirao and Hiroshi Funakubo and Masaki Azuma}, title = {Suppression of Pressure-Induced Phase Transitions in a Monoclinically Distorted LiNbO3-Type CuNbO3 by Preference for a CuO3 Triangular Coordination Environment}, journal = {Inorganic Chemistry}, year = 2022, } @article{CTT100886704, author = {Takehiro Koike and Takumi Nishikubo and Yuki Sakai and Hirofumi Ishii and Masaki Azuma}, title = {Negative thermal expansion in PbTiO3-type perovskites oxide Bi0.5+xNa0.5−xVO3}, journal = {Journal of the Ceramic Society of Japan }, year = 2022, } @article{CTT100886716, author = {Shiori Kihara and Yuki Sakai and Shogo Wakazaki and Takumi Nishikubo and Takehiro Koike and Ko Mibu and Hongwu Yu and Yoichi Okimoto and Shin-ya Koshihara and Masaki Azuma}, title = {Bi0.5Pb0.5FeO3 with Unusual Pb Charge Disproportionation: Indication of a Systematic Charge Distribution Change in Bi0.5Pb0.5MO3 (M: 3d Transition Metal)}, journal = {Inorganic Chemistry}, year = 2022, } @article{CTT100888525, author = {Harry W. T. Morgan and Takafumi Yamamoto and Takumi Nishikubo and Takuya Ohmi and Takehiro Koike and Yuki Sakai and Masaki Azuma and Hirofumi Ishii and Genki Kobayashi and John E. McGrady}, title = {Sequential Pressure-Induced B1−B2 Transitions in the AnionOrdered Oxyhydride Ba2YHO3}, journal = {Inorganic Chemistry}, year = 2022, } @article{CTT100866894, author = {Zhao Pan and Koike Takehiro and Takumi Nishikubo and Lei Hu and Qiumin Liu and Yuki Sakai and Shogo Kawaguchi and Masaki Azuma}, title = {Realization of Negative Thermal Expansion in Lead-Free Bi0.5K0.5VO3 by the Suppression of Tetragonality}, journal = {Inorganic Chemistry}, year = 2022, } @inproceedings{CTT100910836, author = {小池 剛大 and 西久保 匠 and 酒井 雄樹 and 東 正樹}, title = {K2NiF4型化合物Sr2CrO4・Sr2CoO4の高圧合成と熱膨張評価}, booktitle = {}, year = 2024, } @inproceedings{CTT100910835, author = {小池 剛大 and 西久保 匠 and 酒井 雄樹 and 東 正樹}, title = {K2NiF4型化合物Sr2CrO4・Sr2CoO4の高圧合成と熱膨張評価}, booktitle = {}, year = 2024, } @inproceedings{CTT100910843, author = {Koomok Lee and Hena Das and Yuki Sakai and Takumi Nishikubo and Kei Shigematsu and Daiki Ono and Takehiro Koike and Naomi Kawamura and Masaichiro Mizumaki and Naoki Ishimatsu and Masaki Azuma}, title = {Material Design for Low Power Consumption Multiferroic Memory using High Spin Co3+ substituted BiFeO3}, booktitle = {}, year = 2024, } @inproceedings{CTT100910844, author = {Koomok Lee and Hena Das and Yuki Sakai and Takumi Nishikubo and Kei Shigematsu and Daiki Ono and Takehiro Koike and Naomi Kawamura and Masaichiro Mizumaki and Naoki Ishimatsu and Masaki Azuma}, title = {Emergence of weak ferromagnetism in High Spin Co3+ substituted BiFeO3}, booktitle = {}, year = 2024, } @inproceedings{CTT100907326, author = {三宅 潤 and 小池 剛大 and 西久保 匠 and 酒井 雄樹 and 東 正樹}, title = {非晶質前駆体を用いたK2NiF4型負熱膨張材料の合成および探索}, booktitle = {}, year = 2023, } @inproceedings{CTT100887585, author = {小池 剛大 and 東 正樹 and 西久保 匠 and 酒井 雄樹}, title = {PbTiO3 型ペロブスカイト酸化物Bi0.5+xNa0.5-xVO3の負熱膨張}, booktitle = {}, year = 2022, } @inproceedings{CTT100887588, author = {小池 剛大 and 西久保 匠 and 酒井 雄樹 and 東 正樹}, title = {PbTiO3 型ペロブスカイト酸化物Bi0.5+xNa0.5-xVO3の負熱膨張}, booktitle = {}, year = 2022, }