Dynamic spin correlations in the frustrated cubic phase of MnV 2O4

Jae Ho Chung, Young Sang Song, J. H. Kim, T. Suzuki, Takuro Katsufuji, M. Matsuda, S. H. Lee

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    The ferrimagnetic spinel MnV2O4 undergoes an orbital-induced cubic-to-tetragonal distortion at TYK=58 K, below which noncollinear commensurate ferrimagnetic ordering occurs. Using inelastic neutron scattering, we investigated low-energy dynamics in its cubic phase above TYK. We observed two types of coexisting short-range magnetic excitations: the dispersive spin waves centered around the Brillouin-zone centers, k0 = (0, 0, 0), and quasielastic spin fluctuations centered at incommensurate wave vectors, kincom = (ξ, ξ, 0). The coexistence of the two distinct features can be understood as a dynamic realization of the conical spiral order observed in cubic spinels such as CoCr2O4.

    Original languageEnglish
    Article number094430
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume88
    Issue number9
    DOIs
    Publication statusPublished - 2013 Sep 23

    Fingerprint

    Spin dynamics
    spin dynamics
    Spin fluctuations
    Inelastic neutron scattering
    Spin waves
    Brillouin zones
    magnons
    spinel
    inelastic scattering
    neutron scattering
    orbitals
    excitation
    energy
    spinell

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

    Cite this

    Dynamic spin correlations in the frustrated cubic phase of MnV 2O4 . / Chung, Jae Ho; Song, Young Sang; Kim, J. H.; Suzuki, T.; Katsufuji, Takuro; Matsuda, M.; Lee, S. H.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 88, No. 9, 094430, 23.09.2013.

    Research output: Contribution to journalArticle

    Chung, Jae Ho ; Song, Young Sang ; Kim, J. H. ; Suzuki, T. ; Katsufuji, Takuro ; Matsuda, M. ; Lee, S. H. / Dynamic spin correlations in the frustrated cubic phase of MnV 2O4 In: Physical Review B - Condensed Matter and Materials Physics. 2013 ; Vol. 88, No. 9.
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    AU - Song, Young Sang

    AU - Kim, J. H.

    AU - Suzuki, T.

    AU - Katsufuji, Takuro

    AU - Matsuda, M.

    AU - Lee, S. H.

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