Inhomogeneous electronic states associated with charge-orbital order/disorder in BaV10O15 probed by photoemission spectromicroscopy

T. Yoshino, K. Wakita, E. Paris, A. Barinov, Tomomasa Kajita, Takuro Katsufuji, V. Kandyba, T. Sugimoto, T. Yokoya, N. L. Saini, Takashi Mizokawa

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    We have performed scanning photoemission spectromicroscopy of BaV10O15 across the metal-insulator transition at 123 K, which is accompanied by V 3d charge/orbital order and V trimerization. Nucleation of metallic domains is observed at the cleaved surface of BaV10O15 single crystals, similar to Cr-doped V2O3 in which electronic configurations of Cr3+ and V3+ are the same as those of V2+ and V3+ in BaV10O15. Typical domain size is ~5-10 μm at 150 K, just above the transition temperature. The metallic domains continuously grow up to 240 K, well above the transition temperature. The temperature evolution of the metallic phase in BaV10O15 is different from that of Cr-doped V2O3, probably due to the charge degrees of freedom in BaV10O15

    Original languageEnglish
    JournalPhysical Review B
    Volume96
    Issue number11
    DOIs
    Publication statusPublished - 2017 Jan 1

    Fingerprint

    Metal insulator transition
    Order disorder transitions
    Photoemission
    Electronic states
    Superconducting transition temperature
    Nucleation
    photoelectric emission
    Single crystals
    disorders
    Scanning
    orbitals
    transition temperature
    electronics
    Temperature
    degrees of freedom
    insulators
    nucleation
    scanning
    single crystals
    configurations

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Cite this

    Inhomogeneous electronic states associated with charge-orbital order/disorder in BaV10O15 probed by photoemission spectromicroscopy. / Yoshino, T.; Wakita, K.; Paris, E.; Barinov, A.; Kajita, Tomomasa; Katsufuji, Takuro; Kandyba, V.; Sugimoto, T.; Yokoya, T.; Saini, N. L.; Mizokawa, Takashi.

    In: Physical Review B, Vol. 96, No. 11, 01.01.2017.

    Research output: Contribution to journalArticle

    Yoshino, T. ; Wakita, K. ; Paris, E. ; Barinov, A. ; Kajita, Tomomasa ; Katsufuji, Takuro ; Kandyba, V. ; Sugimoto, T. ; Yokoya, T. ; Saini, N. L. ; Mizokawa, Takashi. / Inhomogeneous electronic states associated with charge-orbital order/disorder in BaV10O15 probed by photoemission spectromicroscopy. In: Physical Review B. 2017 ; Vol. 96, No. 11.
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    abstract = "We have performed scanning photoemission spectromicroscopy of BaV10O15 across the metal-insulator transition at 123 K, which is accompanied by V 3d charge/orbital order and V trimerization. Nucleation of metallic domains is observed at the cleaved surface of BaV10O15 single crystals, similar to Cr-doped V2O3 in which electronic configurations of Cr3+ and V3+ are the same as those of V2+ and V3+ in BaV10O15. Typical domain size is ~5-10 μm at 150 K, just above the transition temperature. The metallic domains continuously grow up to 240 K, well above the transition temperature. The temperature evolution of the metallic phase in BaV10O15 is different from that of Cr-doped V2O3, probably due to the charge degrees of freedom in BaV10O15",
    author = "T. Yoshino and K. Wakita and E. Paris and A. Barinov and Tomomasa Kajita and Takuro Katsufuji and V. Kandyba and T. Sugimoto and T. Yokoya and Saini, {N. L.} and Takashi Mizokawa",
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    T1 - Inhomogeneous electronic states associated with charge-orbital order/disorder in BaV10O15 probed by photoemission spectromicroscopy

    AU - Yoshino, T.

    AU - Wakita, K.

    AU - Paris, E.

    AU - Barinov, A.

    AU - Kajita, Tomomasa

    AU - Katsufuji, Takuro

    AU - Kandyba, V.

    AU - Sugimoto, T.

    AU - Yokoya, T.

    AU - Saini, N. L.

    AU - Mizokawa, Takashi

    PY - 2017/1/1

    Y1 - 2017/1/1

    N2 - We have performed scanning photoemission spectromicroscopy of BaV10O15 across the metal-insulator transition at 123 K, which is accompanied by V 3d charge/orbital order and V trimerization. Nucleation of metallic domains is observed at the cleaved surface of BaV10O15 single crystals, similar to Cr-doped V2O3 in which electronic configurations of Cr3+ and V3+ are the same as those of V2+ and V3+ in BaV10O15. Typical domain size is ~5-10 μm at 150 K, just above the transition temperature. The metallic domains continuously grow up to 240 K, well above the transition temperature. The temperature evolution of the metallic phase in BaV10O15 is different from that of Cr-doped V2O3, probably due to the charge degrees of freedom in BaV10O15

    AB - We have performed scanning photoemission spectromicroscopy of BaV10O15 across the metal-insulator transition at 123 K, which is accompanied by V 3d charge/orbital order and V trimerization. Nucleation of metallic domains is observed at the cleaved surface of BaV10O15 single crystals, similar to Cr-doped V2O3 in which electronic configurations of Cr3+ and V3+ are the same as those of V2+ and V3+ in BaV10O15. Typical domain size is ~5-10 μm at 150 K, just above the transition temperature. The metallic domains continuously grow up to 240 K, well above the transition temperature. The temperature evolution of the metallic phase in BaV10O15 is different from that of Cr-doped V2O3, probably due to the charge degrees of freedom in BaV10O15

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