The phase-dependent dissipation effect in a dc SQUID

被引:0
|
作者
Kim, J [1 ]
Lee, HJ [1 ]
机构
[1] POHANG UNIV SCI & TECHNOL,DEPT PHYS,POHANG 790784,KYUNGBUK,SOUTH KOREA
关键词
high-T-c superconductors; superconductors; electronic transport; tunnelling;
D O I
10.1016/0038-1098(96)00243-8
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The magnetic field modulation of the voltage output of a d.c. SQUID, calculated numerically including the phase-dependent dissipation (PDD) term with a negative prefactor epsilon in Josephson junctions, exhibits maxima (minima) at integer (half-integer) values of the magnetic filling factor f in a larger bias current beyond I *, the values of which depends on the inductance parameter beta(L) and the prefactor epsilon. Asymmetry in both junction critical currents and inductances between the two branches of a d.c. SQUID loop does not change the essential feature of the magnetic-field modulation of the resistance due to the PDD effect. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码:323 / 328
页数:6
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