MAGNETIC-FIELD DEPENDENCE OF LOSS-FREQUENCY CHARACTERISTICS OF MULTI-FILAMENTARY SUPERCONDUCTORS

被引：2

作者：

IRIE, F

SUMIYOSHI, F

YOSHIDA, K

机构：

[1] Department of Electronics, Kyushu University

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1979年 / 15卷 / 01期

关键词：

D O I：

10.1109/TMAG.1979.1060227

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

AC losses of multi-filamentary superconductors for an ac magnetic field with a large amplitude, where a strong nonlinearity between the applied field and the penetrated flux into a superconducting filament become a problem, havebeen studied theoretically. The present theory, based on an effective complex permeability expressing the hysteresis property of superconducting filaments, is shown to explain quantitatively observed magnetic field dependences of loss-frequency characteristics in Nb-Ti multi-filamentary superconductors. It is pointed out that due to the nonlinearity the shape of the frequency characteristics of an eddy current loss is markedly shifted and deformed from the Lorentz type shown by Carr. © 1979 IEEE

引用

页码：244 / 247

页数：4

共 11 条

[1]

BOTTCHER CJF, 1952, THEORY ELECTRIC POLA

[2]

Carr W. J. Jr., 1975, Physical Review B (Solid State), V11, P1547, DOI 10.1103/PhysRevB.11.1547

[3]

CARR WJ, 1974, J APPL PHYS, V45, P929, DOI 10.1063/1.1663341

[4] THEORY OF FLUX MOTION IN NON-IDEAL TYPE-2 SUPERCONDUCTORS [J].