Ferromagnetic film on a superconducting substrate

被引：43
作者：
Bulaevskii, LN
Chudnovsky, EM
机构：
[1] CUNY Herbert H Lehman Coll, Dept Phys & Astron, Bronx, NY 10468 USA
[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
来源：
PHYSICAL REVIEW B | 2001年 / 63卷 / 01期
关键词：
D O I：
10.1103/PhysRevB.63.012502
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study th equilibrium domain structure and magnetic flux around a ferromagnetic film with perpendicular magnetization M-o on a superconducting (SC) substrate. At 4 pi M-o<H-cl the SC is in the Meissner state and the equilibrium domain width in the film, l, scales at (l/4<pi>lambda (L)) = (l(N)/4 pi lambda (L))(2/3) with the domain width on a normal (nonsuperconducting) substrate, l(N)/4 pi lambda (L)>>1; lambda (L) being the London penetration length.
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