VORTEX DYNAMICS AT MICROWAVE-FREQUENCIES IN PATTERNED YBA2CU3O7-DELTA THIN-FILMS

被引：12
|
作者：
WILLEMSEN, BA [1 ]
SRIDHAR, S [1 ]
DEROV, JS [1 ]
SILVA, JH [1 ]
机构：
[1] ROME LAB,BEDFORD,MA 01731
来源：
APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 04期
关键词：
D O I：
10.1063/1.115166
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
YBa2Cu3O7-delta thin films patterned in the form of a meander line resonant structure, are used as a sensitive probe of vortex dynamics at microwave frequencies. The experiments enable highly sensitive measurements of the complex microwave surface impedance Z(s)(omega,T,H) of YBa2CU3O7-delta as a function of applied de magnetic field, temperature, and frequency. The Z(s)(H, T) versus H data yield direct experimental results for the vortex viscosity and pinning force constant, which are compared with microscopic theory. (C) 1995 American Institute of Physics.
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收藏
页码：551 / 553
页数：3
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