Journal Paper

• Qiu min Liu, Hena Das, Takumi Nishikubo, Yuki Sakai, Ko Mibu, Tomoko Onoue, Takateru Kawakami, Tetsu Watanuki, Akihiko Machida, Xubin Ye, Jianhong Dai, Zhao Pan, Lei Hu, Satoshi Nakano, Masayuki Fukuda, Shiori Kihara, Koomok Lee, Takehiro Koike, Youwen Long, Masaki Azum. ressure Induced Amorphization of Pb²⁺ and Pb⁴⁺ in Perovskite PbFeO₃, Chemistry of Materials, 36, 1899-1907, Feb. 2024.

International Conference (Reviewed)

• Takumi Nishikubo, Yuki Sakai, Kengo Oka, Masaichiro Mizumaki, Tetsu Watanuki, Takashi Mizokawa, Masaki Azuma. Systematic charge distribution changes in Bi、Pb-3d transition metal perovskite oxides, Spin-Orbital-Lattice correlations induced phenomena in emerging materials (SOLC23), 2024.
• Yuki Sakai, Shiori Kihara, Shogo Wakazaki, Takumi Nishikubo, Masayuki Fukuda, Hena Das, Masaichiro Mizumaki, Ko Mibu, Akihiko Machida, Tetsu Watanuki, Masaki Azuma. Systematic charge distribution change in perovskite-type Bi_0.5Pb_0.5MO₃ (M = 3d transition metal), The 4th International Symposium on Negative Thermal Expansion and Related Materials (ISNTE-4), 2024.
• Takumi Nishikubo, Takashi Imai, Yuki Sakai, Masaichiro Mizumaki, Shogo Kawaguchi, Norihiro Oshime, Ayumu Shimada, Kento Sugawara, Kenji Ohwada, Akihiko Machida, Tetsu Watanuki, Kosuke Kurushima, Shigeo Mori, Takashi Mizokawa, Masaki Azuma. Domain structure observation and design of phase transition-type negative thermal expansion materials, The 4th International Symposium on Negative Thermal Expansion and Related Materials (ISNTE-4), 2024.
• Takumi Nishikubo, Yuki Sakai, Masaichiro Mizumaki, Shogo Kawaguchi, Norihiko Oshime, Kento Sugawara, Ayumi Shimada, Kenji Ohwada, Akihiko Machida, Tetsu Watanuki, Kosuke Kurushima, Shigeo Mori, Takashi Miokawa, Masaki Azuma. Transition-type PbVO₃ Based Negative Thermal Expansion Materials, International Conference on Powder and Powder Metallurgy(JSPMIC2023), 2024.

Domestic Conference (Reviewed)

• Takehiro Koike, Takumi Nishikubo, Yuki Sakai, Masaki Azuma. K₂NiF₄型化合物Sr₂CrO₄・Sr₂CoO₄の高圧合成と熱膨張評価, 第62回セラミックス基礎科学討論会, 2024.
• Takehiro Koike, Takumi Nishikubo, Yuki Sakai, Masaki Azuma. K₂NiF₄型化合物Sr₂CrO₄・Sr₂CoO₄の高圧合成と熱膨張評価, 第62回セラミックス基礎科学討論会, 2024.
• Yuki Sakai, Sergey A. Nikolaev, Takumi Nishikubo, 中島宏, 森茂生, 町田晃彦, 綿貫徹, 沖本洋一, 松田雅昌, Masaki Azuma. ペロブスカイト型酸化物PbCoO₃の温度誘起相転移, 日本セラミックス協会2024年年会, 2024.
• Koomok Lee, Hena Das, Yuki Sakai, Takumi Nishikubo, Kei Shigematsu, Daiki Ono, Takehiro Koike, Naomi Kawamura, Masaichiro Mizumaki, Naoki Ishimatsu, Masaki Azuma. Emergence of weak ferromagnetism in High Spin Co³⁺ substituted BiFeO3, The 22nd Japan-Korea-Taiwan Symposium on Strongly Correlated Electron Systems (JKT22), 2024.
• Yuki Sakai, Sergey A. Nikolaev, Takumi Nishikubo, 中島宏, 森茂生, 町田晃彦, 綿貫徹, 沖本洋一, 松田雅昌, Masaki Azuma. ペロブスカイト型酸化物PbCoO₃の温度誘起相転移, 第64回高圧討論会, 2024.

Domestic Conference (Not reviewed / Unknown)

• Takumi Nishikubo, Yuki Sakai, Masaki Azuma. 新規アニオン欠損秩序型ペロブスカイトBiNi_1-xFe_xO₂.8の構造と特異な電荷秩序, 日本セラミックス協会2024年年会, 2024.
• Koomok Lee, Hena Das, Yuki Sakai, Takumi Nishikubo, Kei Shigematsu, Daiki Ono, Takehiro Koike, Naomi Kawamura, Masaichiro Mizumaki, Naoki Ishimatsu, Masaki Azuma. Material Design for Low Power Consumption Multiferroic Memory using High Spin Co³⁺ substituted BiFeO3, 第15回在日科協合同分科会, 2024.

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