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Metamagnetic behavior in a quadruple perovskite oxide

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    0563682 - FZÚ 2023 RIV US eng J - Journal Article
    Okazaki, Y. - Kato, Y. - Kizawa, Y. - Oda, S. - Uemura, K. - Nishio, T. - Fujii, F. - Fujinari, S. - Kinoshita, M. - Odake, T. - Togano, H. - Kamegawa, T. - Kawaguchi, S. - Yamamoto, H. - Ikeno, H. - Yagi, S. - Wada, K. - Ahn, Kyo-Hoon - Hariki, A. - Yamada, I.
    Metamagnetic behavior in a quadruple perovskite oxide.
    Inorganic Chemistry. Roč. 60, č. 10 (2021), s. 7023-7030. ISSN 0020-1669. E-ISSN 1520-510X
    Institutional support: RVO:68378271
    Keywords : CeMn3Cr4O12 * cubic quadruple perovskite * magnetic transition * 4f-electron
    OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
    Impact factor: 5.436, year: 2021
    Method of publishing: Limited access
    https://doi.org/10.1021/acs.inorgchem.0c03432

    A cubic quadruple perovskite oxide CeMn3Cr4O12 has been synthesized under high-pressure and high-temperature conditions of 8 GPa and 1273 K. The X-ray absorption spectroscopy reveals that the Ce ions are in a trivalent state, as represented by the ionic model of Ce3+Mn3+3Cr3+4O12. The magnetic study demonstrates three independent antiferromagnetic transitions attributed to Ce (∼10 K), Mn (46 K), and Cr (133 K) ions. Furthermore, a magnetic field-induced antiferromagnetic-to-ferromagnetic (metamagnetic) transition of Ce3+ 4f moments is observed at low temperatures below 20 K, exhibiting a rare example of metamagnetism in the Ce3+-oxides. This finding represents that the 3d-electron magnetic sublattices play a role in the metamagnetism of 4f-electron magnetic moments, demonstrating a new aspect of the 3d–4f complex electron systems.
    Permanent Link: https://hdl.handle.net/11104/0335561

     
     
Number of the records: 1  

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