Proximity Effect and Spontaneous Vortex Phase in Planar SF-Structures

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

References in corpus (5)

• Coupling of two superconductors through a ferromagnet : evidence for a pi-junction
• Nonmonotonic critical temperature in superconductor/ferromagnet bilayers
• Interaction of Mesoscopic Magnetic Textures with Superconductors
• Inhomogeneous superconductivity induced in a weak ferromagnet
• Domain structure of superconducting ferromagnets

Cited by in corpus (19)

• Proximity effects in superconductor-ferromagnet heterostructures
• Re-entrant superconductivity in Nb/Cu(1-x)Ni(x) bilayers
• Stray-fields-based magnetoresistance mechanism in Ni80Fe20-Nb-Ni80Fe20 trilayers
• Reentrant superconductivity in superconductor/ferromagnetic-alloy bilayers
• Resonant proximity effect in normal metal / diffusive ferromagnet / superconductor junctions
• Resonant peak in the density of states in the normal metal / diffusive ferromagnet / superconductor junctions
• Flux-flow induced giant magnetoresistance in all-amorphous superconductor-ferromagnet hybrids
• Quantitative analysis of proximity effect in $Nb/C{o}_{60}F{e}_{40}$, Nb/Ni, and $Nb/C{u}_{40}N{i}_{60}$ bilayers
• Domain wall effects in ferromagnet-superconductor structures
• Synergy of exchange bias with superconductivity in ferromagnetic-superconducting layered hybrids: the influence of in-plane and out-of-plane magnetic order on superconductivity
• Andreev conductance of a domain wall
• Planar SFS Josephson Junctions Made by Focused Ion Beam Etching
• Spin-polarized proximity effect in superconducting junctions
• Sudden Critical Current Drops Induced in S/F Structures
• Visualization of ferromagnetic domains in TbNi${}_2$B${}_2$C and ErNi${}_2$B${}_2$C single crystals: Weak ferromagnetism and its coexistence with superconductivity
• Depairing currents in superconductor / ferromagnet Nb/CuNi trilayers close to T${}_c$
• Reentrant Superconductivity and Superconducting Critical Temperature Oscillations in F/S/F trilayers of Cu41Ni59/Nb/Cu41Ni59 Grown on Cobalt Oxide
• The physics of superconductor-ferromagnet hybrid structures
• Sudden Magnetization Drops in S/F bilayered Structures