Transport in ferromagnet/superconductor spin valves

Moen, Evan; Valls, Oriol T.

doi:10.1103/physrevb.95.054503

Title: Transport in ferromagnet/superconductor spin valves

Journal Article · Wed Feb 08 00:00:00 EST 2017 · Physical Review B

DOI:https://doi.org/10.1103/physrevb.95.054503· OSTI ID:1535848

Moen, Evan ^[1]; Valls, Oriol T. ^[1]

Univ. of Minnesota, Minneapolis, MN (United States)

We consider charge transport properties in realistic, fabricable, ferromagnet/superconductor spin valves having a layered structure F₁/N/F₂/S, where F₁ and F₂ denote the ferromagnets, S the superconductor, and N the normal-metal spacer usually inserted in actual devices. Our calculation is fully self-consistent, as required to ensure that conservation laws are satisfied. We include the effects of scattering at all the interfaces. We obtain results for the device conductance G, as a function of bias voltage, for all values of the angle Φ between the magnetizations of the F₁ and F₂ layers and a range of realistic values for the material and geometrical parameters in the sample. We discuss, in the context of our results for G, the relative influence of all parameters on the spin valve properties. We also study the spin current and the corresponding spin-transfer torque in F₁/F₂/S structures.

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Research Organization:: Univ. of California, Irvine, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC0014467

OSTI ID:: 1535848

Alternate ID(s):: OSTI ID: 1343334

Journal Information:: Physical Review B, Vol. 95, Issue 5; ISSN 2469-9950

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 9 works

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Bias current dependence of superconducting transition temperature in superconducting spin valve nanowires Jara, Alejandro A.; Moen, Evan; Valls, Oriol T. arXiv https://doi.org/10.48550/arxiv.1908.03612	text	January 2019
Superconducting spin-valve effect in heterostructures with ferromagnetic Heusler alloy layers Kamashev, A. A.; Garif'yanov, N. N.; Validov, A. A. arXiv https://doi.org/10.48550/arxiv.1911.09984	text	January 2019

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Title: Transport in ferromagnet/superconductor spin valves

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