High-pressure synthesis of half-doped perovskites MnV0.5Nb0.5O3 and MnV0.5Ta0.5O3 with unusual A-site small Mn2+ cations

Xun Kang; Hiroaki Hayashi; Alexei A. Belik; Yoshihiro Tsujimoto; Kazunari Yamaura

doi:10.1080/08957959.2023.2283543

論文 High-pressure synthesis of half-doped perovskites MnV0.5Nb0.5O3 and MnV0.5Ta0.5O3 with unusual A-site small Mn2+ cations

Xun Kang (Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Solid State Materials Group, National Institute for Materials Science) ; Hiroaki Hayashi (Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Solid State Materials Group, National Institute for Materials Science) ; Alexei A. Belik (Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Solid State Materials Group, National Institute for Materials Science) ; Yoshihiro Tsujimoto (Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Solid State Materials Group, National Institute for Materials Science) ; Kazunari Yamaura (Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Solid State Materials Group, National Institute for Materials Science)

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Xun Kang, Hiroaki Hayashi, Alexei A. Belik, Yoshihiro Tsujimoto, Kazunari Yamaura. High-pressure synthesis of half-doped perovskites MnV0.5Nb0.5O3 and MnV0.5Ta0.5O3 with unusual A-site small Mn2+ cations . HIGH PRESSURE RESEARCH. 2024, (), . https://doi.org/10.1080/08957959.2023.2283543

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(abstract)

We have successfully synthesized two new half-doped perovskites, MnV0.5Nb0.5O3 and MnV0.5Ta0.5O3, with unique small Mn2+ cations at the A site under high-temperature and high-pressure conditions (6 GPa and 900-1300 °C). Synchrotron X-ray structure analysis confirmed their crystal structures to belong to the space group Pnma, and they do not exhibit features of an ordered perovskite (double perovskite) structure. Magnetic property measurements revealed an essentially antiferromagnetic nature below 17 K and 18 K for both compounds, respectively, accompanied by a small contribution of thermal and magnetic field hysteresis. Electrical conductivity measurements showed activation energies of 0.13 eV and 0.31 eV, respectively, suggesting semiconductor-like behavior. These findings underscore the potential of these materials with unusual A-site small Mn2+ cations for electronic and magnetic devices, warranting further studies to explore their unique magnetic and electronic properties.

権利情報:

Creative Commons BY-NC Attribution-NonCommercial 4.0 International
This is an Accepted Manuscript version of the following article, accepted for publication in High Pressure Research. Xun Kang, Hiroaki Hayashi, Alexei A. Belik, Yoshihiro Tsujimoto & Kazunari Yamaura. (2023) High-pressure synthesis of half-doped perovskites MnV0.5Nb0.5O3 and MnV0.5Ta0.5O3 with unusual A-site small Mn2+ cations. HIGH PRESSURE RESEARCH. https://doi.org/10.1080/08957959.2023.2283543. It is deposited under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.1/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

キーワード: Perovskites, MnVO3, High-pressure synthesis

刊行年月日: 2024-01-02

出版者: Taylor & Francis

掲載誌:

HIGH PRESSURE RESEARCH (ISSN: 14772299)

研究助成金:

Japan Society for the Promotion of Science JP20H05276 (Grant-in-Aid for Scientific Research)
Japan Society for the Promotion of Science JP22H04601 (Grant-in-Aid for Scientific Research)
Kazuchika Okura Memorial Foundation 2022-11

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4297

公開URL: https://doi.org/10.1080/08957959.2023.2283543

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更新時刻: 2024-11-21 16:30:51 +0900

MDRでの公開時刻: 2024-11-21 16:30:51 +0900

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