Materials/Devices
Masaki Azuma
Professor
Solid State ChemistryPhysicsMaterials Science
Research Projects
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Stabilization of PbCoO3 and discovery of unique charge distribution
Topics
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New material with ferroelectricity and ferromagnetism may lead to better computer memory
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Research group unravels 50 year mystery concerning lead chromate
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Tunable negative thermal expansion materials
| 2016- | Professor, IIR, Tokyo Institute of Technology |
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| 2010-2016 | Professor, Materials and Structures Laboratory, Tokyo Institute of Technology |
| 2004-2010 | Assoc. Prof., Inst. Chem. Res., Kyoto Univ. |
| 1995-2004 | Instructor, Inst. Chem. Res., Kyoto Univ. |
| 2007 | Thomson Scientific Research Front Award 2007 |
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| 2005 | The Young Scientists’ Award, The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology |
| 2020 | Enhanced Spontaneous Polarization by V4+ Substitution in a Lead-Free Perovskite CaMnTi2O6, Masayuki Fukuda, Takumi Nishikubo, Zhao Pan, Yuki Sakai, Mao-Hua Zhang, Shogo Kawaguchi, Hongwu Yu, Yoichi Okimoto, Shin-ya Koshihara, Mitsuru Itoh, Jürgen Rödel, and Masaki Azuma, Inorg. Chem. 2020, 59, 16, 11749–11756 |
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| 2020 | Stabilized Charge, Spin, and Orbital Ordering by the 6s2 Lone Pair in Bi0.5Pb0.5MnO3, Shogo Wakazaki, Takumi Nishikubo, Yuki Sakai, Kei Shigematsu, Hena Das, Depei Zhang, Qiang Zhang, Masaaki Matsuda, and Masaki Azuma, Inorg. Chem. 2020, 59, 18, 13390–13397 |
| 2020 | Sequential Spin State Transition and Intermetallic Charge Transfer in PbCoO3, Zhehong Liu, Yuki Sakai, Junye Yang, Wenmin Li, Ying Liu, Xubin Ye, Shijun Qin, Jinming Chen, Stefano Agrestini, Kai Chen, Sheng-Chieh Liao, Shu-Chih Haw, Francois Baudelet, Hirofumi Ishii, Takumi Nishikubo, Hayato Ishizaki, Tatsuru Yamamoto, Zhao Pan, Masayuki Fukuda, Kotaro Ohashi, Kana Matsuno, Akihiko Machida, Tetsu Watanuki, Saori I. Kawaguchi, Angel M. Arevalo-Lopez, Changqing Jin, Zhiwei Hu, J. Paul Attfield, Masaki Azuma & Youwen Long. J. Am. Chem. Soc. 2020, 142, 12, 5731–5741 |
| 2020 | Doping-induced in-plane anisotropy of bond-stretching phonon softening in oxychloride Ca2−xCuO2Cl2 compounds, Blair W. Lebert, Hajime Yamamoto, Masaki Azuma, Rolf Heid, Satoshi Tsutsui , Hiroshi Uchiyama, Alfred Q. R. Baron, Benoît Baptiste, and Matteo d’Astuto, PHYSICAL REVIEW B 101, 020506(R) (2020) |
| 2019 | Polar–Nonpolar Phase Transition Accompanied by Negative Thermal Expansion in Perovskite-Type Bi1–xPbxNiO3, Yuki Sakai, Takumi Nishikubo, Takahiro Ogata, Hayato Ishizaki, Takashi Imai, Masaichiro Mizumaki, Takashi Mizokawa Orcid, Akihiko Machida, Tetsu Watanuki, Keisuke Yokoyama, Yoichi Okimoto, Shin-ya Koshihara, Hena Das and Masaki Azuma, Chem. Mater.2019, 31, 13, 4748-4758 |
| 2019 | Strain Manipulation of Magnetic Anisotropy in Room-Temperature Ferrimagnetic Quadruple Perovskite CeCu3Mn4O12, Kei Shigematsu, Keisuke Shimizu, Kazumasa Yamamoto, Takumi Nishikubo, Yuki Sakai, Sergey A. Nikolaev, Hena Das, and Masaki Azuma, ACS Appl. Electron. Mater 2019, 1, 12, 2514-2521 |
| 2019 | Frustrated magnetic interactions in an S = 3/2 bilayer honeycomb lattice compound Bi3Mn4O12(NO3), M. Matsuda , S. E. Dissanayake, D. L. Abernathy, Y. Qiu J. R. D. Copley, N. Kumada, M. Azuma, Phys. Rev. B 100, 134430 |
| 2019 | Melting of dxy orbital ordering accompanied by suppression of giant tetragonal distortion and insulator to metal transition in Cr substituted PbVO3, Takahiro Ogata, Yuki Sakai, Hajime Yamamoto, Satyanarayan Patel, Jurij Koruza, Zhao Pan, Takumi Nishikubo, Jürgen Rödel, and Masaki Azuma, Chem. Mater. 2019, 31, 4, 1352–1358 |
| 2019 | Hydrothermal Synthesis of Pyrochlore-Type Pentavalent Bismuthates Ca2Bi2O7 and Sr2Bi2O7, Md Saiduzzaman, Takahiro Takei, Sayaka Yanagida, Nobuhiro Kumada, Hena Das, Hirokazu Kyokane, Shogo Wakazaki, Masaki Azuma, Chikako Moriyoshi, and Yoshihiro Kuroiwa, Inorganic Chemistry, 2019, 58 (3), pp 1759–1763 |
| 2018 | Na1/2Bi1/2VO3 and K1/2Bi1/2VO3: New Lead-free Tetragonal Perovskites with Moderate c/a ratio, Hajime Yamamoto, Takahiro Ogata, Satyanarayan Patel, Jurij Koruza, Jürgen Rӧdel, Atanu Paul, Tanusri Saha-Dasgupta, Yuki Sakai, Mitsuru Itoh and Masaki Azuma, Chemistry of Materials, 2018, 30 (19), pp 6728–6736 |
| 2018 | Formation of ZnO4 Tetrahedra and ZnO6 Octahedra in TeZnO3 Synthesized under High Pressure, Jianhong Dai, Xudong Shen, Zhehong Liu, Qing Zhao, Xiao Wang, Cheng Dong, Yuecheng Bian, Wei Ding, Zhigao Sheng, Masaki Azuma, and Youwen Long, Inogranic Chemistry, 57 (11), 6716–6721 (2018) |
| 2018 | Large spontaneous polarization in polar perovskites of PbTiO3-Bi(Zn1/2Ti1/2)O3, Zhao Pan, Xingxing Jiang, Jun Chen, Lei Hu, Hajime Yamamoto, Linxing Zhang, Longlong Fan, Xi’an Fan, Yawei Li, Guangqiang Li, Yang Ren, Zheshuai Lin, Masaki Azuma, Xianran Xing. Inorganic Chemistry Frontiers, Vol. 5, No. 6, pp. 1277-1281, Jun. 2018. |
| 2017 | Ferromagnetism at room temperature induced by spin structure change in BiFe1-xCoxO3thin films, H. Hojo, R. Kawabe, H. Yamamoto, K. Mibu, and M. Azuma, Adv. Mater. 2017, 1603131. |
| 2016 | Enhanced piezoelectric response due to polarization rotation in cobalt-substituted BiFeO3epitaxial thin films , K. Shimizu, H. Hojo, Y. Ikuhara, and M. Azuma, Adv. Mater., 28, (2016) 8639 |
| 2011 | Colossal negative thermal expansion in BiNiO3 induced by intermetallic charge transfer, M. Azuma, W-T Chen, H. Seki, M. Czapsli, S. Olga, K. Oka, M. Mizumaki, T. Watanuki, N. Ishimatsu, N. Kawamura, S. Ishiwata, M. G. Tucker, Y. Shimakawa, and J. P. Attfield,, Nature Communications, 2 (2011) 347 |
| 1994 | Observation of a Spin Gap in SrCu2O3 Comprising Spin-1/2 Quasi-1D Two-Leg Ladders, M. Azuma, Z. Hiroi, M. Takano, K. Ishida and Y. Kitaoka, Phys. Rev. Lett., 73, 25 (1994) 3463-3466. |