Electronic and vibrational properties of an Al-Cu-Ru icosahedral quasicrystal deduced from heat capacities

A. Inaba, S. Ishida, T. Matsuo, K. Shibata, A. P. Tsai

    研究成果: Article査読

    10 被引用数 (Scopus)

    抄録

    Heat capacity measurements have been made in the temperature range 1-310 K for a phasonless perfect quasicrystal Al65Cu20Ru15an Al65Cu20Ru15quasicrystal with phason disorder, and a crystal approximant Al70Cu20Rui0. The electronic heat capacity of the perfect quasicrystal was found to be essentially zero. The existence of some excitation associated with an energy of about 1.6meV is proposed. The vibrational properties of the quasicrystal are distinctly different from those of the crystal approximant in the region T < QD/10, indicating that the densities of states are significantly different at the corresponding energies.

    本文言語English
    ページ(範囲)381-388
    ページ数8
    ジャーナルPhilosophical Magazine Letters
    74
    5
    DOI
    出版ステータスPublished - 1996 11月

    ASJC Scopus subject areas

    • 凝縮系物理学

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