Coupling between Mott excitation and d-d transitions in CoV2 O4

H. Nishihara, A. Furuhashi, N. Yamaguchi, R. Koborinai, Takuro Katsufuji

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    1 Citation (Scopus)

    Abstract

    We studied the optical properties of CoV2O4, in which a broad spectrum arising from the Mott excitation of the V d states and sharp peaks from the intra-atomic d-d transitions in the Co ions coexist. We found that the width of the d-d transition peaks decreases and that Fano resonance appears in the steady-state optical spectrum with decreasing temperature. We also found that the width of the d-d transition peaks increases less than 1 ps after a pump pulse is applied to the Mott excitation. These results indicate that the Mott excitation and the d-d transitions are strongly coupled in this compound.

    Original languageEnglish
    Article number140401
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume92
    Issue number14
    DOIs
    Publication statusPublished - 2015 Oct 1

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    Optical properties
    Pumps
    Ions
    excitation
    Temperature
    optical spectrum
    pumps
    optical properties
    pulses
    ions
    temperature

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

    Cite this

    Coupling between Mott excitation and d-d transitions in CoV2 O4. / Nishihara, H.; Furuhashi, A.; Yamaguchi, N.; Koborinai, R.; Katsufuji, Takuro.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 92, No. 14, 140401, 01.10.2015.

    Research output: Contribution to journalArticle

    Nishihara, H. ; Furuhashi, A. ; Yamaguchi, N. ; Koborinai, R. ; Katsufuji, Takuro. / Coupling between Mott excitation and d-d transitions in CoV2 O4. In: Physical Review B - Condensed Matter and Materials Physics. 2015 ; Vol. 92, No. 14.
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