Proximity Effect and Spontaneous Vortex Phase in Planar SF-Structures
arXiv:cond-mat/0302028 · doi:10.1134/1.1561979
Abstract
The proximity effect in SF structures was examined. It is shown that, due to the oscillations of the induced superconducting order parameter in a ferromagnet, the critical temperature of an SF-bilayer becomes minimal when the thickness of the ferromagnetic layer is close to a quarter of the period of spatial oscillations. It is found that the spontaneous vortex state arisen in the superconductor due to the proximity of the magnetic domain structure of a ferromagnet brings about noticeable magnetoresistive effects.
9 pages, 5 figures, published in JETP Lett