Evolution of phonon Raman spectra with orbital ordering in spinel MnV 2O4

K. Takubo, R. Kubota, T. Suzuki, T. Kanzaki, S. Miyahara, N. Furukawa, Takuro Katsufuji

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    We investigated Raman scattering of spinel MnV2O4, for which orbital ordering of V t2g states below Tc=57 K was proposed. Several peaks evolve in the Raman spectra below Tc, and they show a peculiar polarization dependence, which cannot be explained only by a group theory analysis. We found that it can be explained by considering Mott excitations in the presence of orbital ordering as the dominant intermediate states in the Raman process. This result gives the evidence of orbital ordering in this compound from the viewpoint of electronic structure.

    Original languageEnglish
    Article number094406
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume84
    Issue number9
    DOIs
    Publication statusPublished - 2011 Sep 12

    Fingerprint

    spinel
    Raman scattering
    Raman spectra
    Group theory
    orbitals
    Electronic structure
    group theory
    Polarization
    electronic structure
    polarization
    excitation
    spinell

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

    Cite this

    Evolution of phonon Raman spectra with orbital ordering in spinel MnV 2O4 . / Takubo, K.; Kubota, R.; Suzuki, T.; Kanzaki, T.; Miyahara, S.; Furukawa, N.; Katsufuji, Takuro.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 84, No. 9, 094406, 12.09.2011.

    Research output: Contribution to journalArticle

    Takubo, K. ; Kubota, R. ; Suzuki, T. ; Kanzaki, T. ; Miyahara, S. ; Furukawa, N. ; Katsufuji, Takuro. / Evolution of phonon Raman spectra with orbital ordering in spinel MnV 2O4 In: Physical Review B - Condensed Matter and Materials Physics. 2011 ; Vol. 84, No. 9.
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    AU - Furukawa, N.

    AU - Katsufuji, Takuro

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