Ferromagnetic Film on a Superconducting Substrate

Details Ferromagnetic Film on a Superconducting Substrate Ferromagnetic Film on a Superconducting Substrate

2000-07-10

arxiv.org/abs/cond-mat/0007159v1

Physical Review B63, 012502 (2001)

Physics

Condensed Matter

Superconductivity

4 pages, 2 figures, submitted to PRB

Scientific paper

10.1103/PhysRevB.63.012502

We study the equilibrium domain structure and magnetic flux around a ferromagnetic (FM) film with perpendicular magnetization M_0 on a superconducting (SC) substrate. At 4{\pi}M_0> 1. Here \lambda_L is the London penetration length. For 4{\pi}M_0 > H_{c1} and l_{N} in excess of about 35 {\lambda}_{L}, the domains are connected by SC vortices. We argue that pinning of vortices by magnetic domains in FM/SC multilayers can provide high critical currents.

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