Origin of the Inverse Spin Switch Effect in Superconducting Spin Valves

Simple item page
dc.creatorZhu, J.
dc.creatorCheng, X.
dc.creatorBoone, C.
dc.creatorKrivorotov, I. N.
dc.date2009-02-28
dc.date.accessioned2026-07-07T12:47:55Z
dc.date.available2026-07-07T12:47:55Z
dc.descriptionThe resistance of a ferromagnet/superconductor/ferromagnet (F/S/F) spin valve near its superconducting transition temperature, $T_c$, depends on the state of magnetization of the F layers. This phenomenon, known as spin switch effect (SSE), manifests itself as a resistance difference between parallel ($R_P$) and antiparallel ($R_{AP}$) configurations of the F layers. Both standard ($R_{P}>R_{AP}$) and inverse ($R_{P}<R_{AP}$) SSE have been observed in different superconducting spin valve systems, but the origin of the inverse SSE was not understood. Here we report observation of a coexistence of the standard and inverse SSE in Ni$_{81}$Fe$_{19}$/Nb/Ni$_{81}$Fe$_{19}$/Ir$_{25}$Mn$_{75}$ spin valves. Our measurements reveal that the inverse SSE arises from a dissipative flow of vortices induced by stray magnetic fields from magnetostatically coupled Néel domain wall pairs in the F layers.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0903.0044
dc.identifierhttp://arxiv.org/abs/0903.0044
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/221883
dc.subjectSuperconductivity
dc.titleOrigin of the Inverse Spin Switch Effect in Superconducting Spin Valves
dc.typetext

Files

Collections

arXiv