Frequency dependence of ultrasound attenuation in II-type superconductor

被引：0
|
作者：
Polzikova, NI [1 ]
Raevskii, AO [1 ]
Mansfeld, GD [1 ]
机构：
[1] Russian Acad Sci, Inst Radioengn & Elect, Moscow 103907, Russia
来源：
1998 IEEE ULTRASONICS SYMPOSIUM - PROCEEDINGS, VOLS 1 AND 2 | 1998年
关键词：
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
It has been theoretically shown that ultrasound attenuation due to magnetic vortices in type II superconductor exhibits local temperature and frequency maxima. The absolute maximum occurs at frequency corresponding to that for thermally activated vortex hopping. It was shown that vortex elasticity gives rise an additional solution of wave equation that significantly manifests itself in the case of strong surface pinning. For different surface pinning conditions the impedances of acoustic resonator were calculated.
引用
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页码：1227 / 1230
页数：4
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