Dynamics of photoinduced phenomena in AV 10O 15 (A = Ba, Sr)

A. Nogami, K. Takubo, Tomomasa Kajita, M. Hoshino, Takuro Katsufuji

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    We studied the dynamics of photoinduced phenomena in AV 10O 15 (A=Ba, Sr), where the ground state changes from an insulating state with V trimerization (Ba) to another insulating state with no structural anomaly (Sr). We found that the time dependence of photoinduced reflectivity change is similar up to several picoseconds, but is critically different in the range of several tens of picoseconds between the two compounds. These different behaviors can be attributed to the coupled mode of the photoexcited electronic state and the lattice distortion, which propagates in the crystal of SrV 10O 15 but is trapped in the local minimum of the free energy in BaV 10O 15.

    Original languageEnglish
    Article number214442
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume84
    Issue number21
    DOIs
    Publication statusPublished - 2011 Dec 29

    Fingerprint

    Electronic states
    Crystal lattices
    Ground state
    coupled modes
    Free energy
    time dependence
    free energy
    anomalies
    reflectance
    Crystals
    ground state
    electronics
    crystals

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

    Cite this

    Dynamics of photoinduced phenomena in AV 10O 15 (A = Ba, Sr). / Nogami, A.; Takubo, K.; Kajita, Tomomasa; Hoshino, M.; Katsufuji, Takuro.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 84, No. 21, 214442, 29.12.2011.

    Research output: Contribution to journalArticle

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