期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 25, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202203669
关键词
High-Pressure Synthesis; LiNbO3-Type Structure; Multiple Orders; Phase Transition; Spontaneous Polarization
资金
- MEXT of Japan [19H05465, 19K15585, 19H05823, 20K20547, 20H00397]
- NSERC
- JSPS Core-to-Core Program (A) Advanced Research Networks
- grant for the International Collaborative Research Program of Institute for Chemical Research in Kyoto University from MEXT of Japan
- Grants-in-Aid for Scientific Research [20K20547, 19H05465, 19H05823, 19K15585] Funding Source: KAKEN
Contrary to expectation, the ambient pressure cation disordered InVO3 bixbyite was found to crystallize in the polar LiNbO3-type structure with a large calculated spontaneous polarization and antiferromagnetic coupling.
The ambient pressure cation disordered InVO3 bixbyite has been predicted to form a GdFeO3-type perovskite phase under high pressure and high temperature. Contrary to the expectation, InVO3 was found to crystallize in the polar LiNbO3-type structure with a calculated spontaneous polarization as large as 74 mu C cm(-2). Antiferromagnetic coupling of V3+ magnetic moments and a cooperative magnetic ground state below about 10 K coupled with a polar structure suggest an intriguing ground state of the novel LiNbO3-type high-pressure InVO3 structure.
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