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    题名: Temperature-dependent anisotropy of resistivity of normal hexagonal metals
    作者: Chan W. C.
    贡献者: 淡江大學物理學系
    日期: 1978-05
    上传时间: 2013-03-12 10:58:17 (UTC+8)
    出版者: Bristol: Institute of Physics Publishing Ltd.
    摘要: The anisotropy parameter alpha ( identical to rho /sub //// rho perpendicular to ) in phonon scattering resistivity of normal hexagonal metals at low temperature is estimated numerically from a very simple formula. There are three different sizes of distortion for the Fermi sphere of a hexagonal metal corresponding to the three different kinds of reciprocal lattice vector. The umklapp scattering process with reciprocal lattice vector corresponding to distortion of the largest gap will be frozen out first as temperature decreases. As a result of this, the anisotropy parameters alpha for all three metals Zn, Cd and Mg irrespective of whether their alpha is greater or less than unity, are found to have peaks in the low-temperature region, in qualitative agreement with experiment.
    關聯: Journal of Physics F: Metal Physics 8(5), pp.859-863
    DOI: 10.1088/0305-4608/8/5/016
    显示于类别:[物理學系暨研究所] 期刊論文

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