Superconducting Proximity Effect through a Magnetic Domain Wall

Details Superconducting Proximity Effect through a Magnetic Domain Wall Superconducting Proximity Effect through a Magnetic Domain Wall

2005-07-20

arxiv.org/abs/cond-mat/0507482v1

Phys. Rev. B 72, 140501(R) (2005), also: Virtual Journal of Applications of Superconductivity 9/8 (2005)

Physics

Condensed Matter

Superconductivity

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.72.140501

We study the superconducting proximity effect in a superconductor-ferromagnet-superconductor (SFS) heterostructure, containing a domain wall in the ferromagnetic region. For the ferromagnet we assume an alloy with an exchange splitting of the conduction bands comparable to the superconducting gaps. We calculate the modification of the density of states in the center of the domain wall as a result of the proximity effect. We show that the density of states is sensitive to domain wall parameters due to triplet-pairing correlations created in vicinity of the domain wall. We present a theoretical tool which in a very effective way enables retaining the full spatially dependent spin-space structure of the problem.

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