Vibrational analysis of ion dynamics in Ag β-alumina by Raman and molecular dynamics simulation

O. Kamishima, Y. Iwai, T. Hattori, K. Kawamura, J. Kawamura

    研究成果: Article査読

    1 被引用数 (Scopus)

    抄録

    The Raman spectra of single crystal Ag β-alumina have been measured at room temperature. The interatomic potential was evaluated by a non-linear least square fitting between phonon eigenvalues from Raman and dynamical matrix calculation. Using the obtained pair-potentials, the MD simulation was performed. In order to understand the many-body effects for the fast ion conduction in super ionic conductor, the three kinds of Ag-Ag interaction energies were assumed. The potential barrier height for jump diffusion depends on the magnitude of the repulsive force between mobile ions. It gives a new insight into an ion dynamics of super ionic conductor.

    本文言語English
    ページ(範囲)33-36
    ページ数4
    ジャーナルjournal of the physical society of japan
    79
    SUPPL. A
    DOI
    出版ステータスPublished - 2010

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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