Scattering of quasiparticle of spin-triplet pairs in diffusive superconductor-ferromagnetic nanowire-superconductor junction

TL;DR

This paper investigates how spin-triplet quasiparticles scatter in superconductor-ferromagnet nanostructures, revealing a resistance peak near the transition temperature that diminishes with magnetic field, aligning with experimental observations.

Contribution

It provides a theoretical analysis of the scattering effects of spin-triplet quasiparticles in superconductor-ferromagnet nanostructures, explaining experimental resistance peaks.

Findings

Resistance peak appears below superconducting transition temperature.

Peak diminishes with increasing magnetic field.

Results agree with experimental data from Nature Phys. 6, 389 (2010).

Abstract

We analyze the proximity effect of superconductor/ferromagnet nanostructures and point out that the scattering of quasiparticle of spin-triplet pairs by local magnetic moments leads to large resistance peak slightly below the superconducting transition temperature of the superconductor. Both the temperature and the magnitude of the resistance peak decrease with increasing magnetic field, which agree quite well with the experimental results reported in [Nature Phys. 6, 389 (2010)].