FREQUENCY LIMITATIONS FOR THE APPLICABILITY OF THE CRITICAL-STATE MODEL

被引：5
|
作者：
FISHER, LM
MIRKOVIC, J
VOLOSHIN, IF
MAKAROV, NM
YAMPOLSKII, VA
RODRIGUEZ, FP
SNYDER, RL
机构：
[1] UKRAINIAN ACAD SCI,INST RADIOPHYS & ELECTR,KHARKOV,UKRAINE
[2] UNIV AUTONOMA PUEBLA,INST FIS,PUEBLA 72570,MEXICO
[3] ALFRED UNIV,NEW YORK STATE COLL CERAM,ALFRED,NY 14802
来源：
APPLIED SUPERCONDUCTIVITY | 1994年 / 2卷 / 10-12期
关键词：
D O I：
10.1016/0964-1807(94)90067-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The frequency dependence of the surface impedance Z of superconductors has been studied in the frequency range 10 Hz-100 kHz. An essential deviation Z(omega) from the linear law predicted by the usual critical state; model is found. The character of this deviation depends qualitatively on the amplitude of the magnetic field. Results obtained are interpreted in the framework of the modified model where we take into account the contribution of a dissipative term to the screening current. The value of this term is connected with the V-I characteristics of the superconductor, so it is possible to obtain some information about these characteristics by the contactless method.
引用
收藏
页码：685 / 687
页数：3
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