Low temperature structural instability of tetragonal spinel Mn 3O4

Jae Ho Chung, Kee Hwan Lee, Young Sang Song, Takehito Suzuki, Takuro Katsufuji

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    Tetragonal ferrimagnetic spinel Mn3O4 shows complex magnetic phase transitions due to competing antiferromagnetic interactions involving Mn2+/3+ ions with difference valences. Using magnetization and neutron diffraction measurements, we propose that its tetragonal lattice possesses an instability towards orthorhombic distortion in zero field well below TN. The direction of the observed instability suggests that the anomaly is related to lifting of the persistent geometrical frustration via spin-lattice coupling.

    Original languageEnglish
    Article number034707
    JournalJournal of the Physical Society of Japan
    Issue number3
    Publication statusPublished - 2013 Mar



    • Ferrimagnet
    • Geometrical frustration
    • Structural instability

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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