Critical temperature of superconductor/ferromagnet bilayers

Abstract

Superconductor/ferromagnet bilayers are known to exhibit nontrivial dependence of the critical temperature T_c on the thickness d_f of the ferromagnetic layer. We develop a general method for investigation of T_c as a function of the bilayer's parameters. It is shown that interference of quasiparticles makes T_c(d_f) a nonmonotonic function. The results are in good agreement with experiment. Our method also applies to multilayered structures.

4 pages, 2 EPS figures; the style file jetpl.cls is included. Version 2: typos corrected

References in corpus (1)

• Coupling of two superconductors through a ferromagnet : evidence for a pi-junction

Cited by in corpus (11)

• Nonmonotonic critical temperature in superconductor/ferromagnet bilayers
• Resonant proximity effect in normal metal / diffusive ferromagnet / superconductor junctions
• Spectroscopy and critical temperature of diffusive superconducting/ferromagnetic hybrid structures with spin-active interfaces
• Superconducting spin-valve effect in heterostructures with ferromagnetic Heusler alloy layers
• Phase Diagrams of Ferromagnet-Superconductor Multilayers with Misaligned Exchange Fields
• Domain wall effects in ferromagnet-superconductor structures
• Hierarchy of critical temperatures in four-layered ferromagnet/superconductor nanostructures and control devices
• Andreev conductance of a domain wall
• Surface effects in magnetic superconductors with a spiral magnetic structure
• Superconducting spin valve effect in Fe/Si${}_3$N${}_4$/Pb/Si${}_3$N${}_4$/Fe heterostructures
• Acoustic spin current generation in superconductors