Ultrasonic attenuation in superconductors. Theory of the effect of Andreev scattering
作者： E M Forgan
DOI: 10.1088/0305-4608/3/7/019
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摘要: The effect on ultrasonic attenuation in superconductors of 'Andreev' scattering-the scattering electronic excitation by spatial variations the order parameter is investigated. result at small ql (q sound wavevector and l electron mean free path) agrees with previous theoretical work, whereas that large shows a new unusual dependence Andreev impurity rates. applicability this theory to clean type II near Hc1 Hc2 discussed.
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