Correlation of the angular dependence of spin-transfer torque and giant magnetoresistance in the limit of diffusive transport in spin valves

2009/01/16 by Martin Gmitra, M. Gmitra, J. Barnaś +1 · 2 citations
Engineering · Physics and Astronomy · #Advanced Memory and Neural Computing #Magnetic properties of thin films #Quantum and electron transport phenomena #cond-mat.other

paper · pdf · doi:10.1103/physrevb.79.012403

published as Phys. Rev. B 79, 012403 (2009) · 4 pages, 3 figures, BRIEF REPORTS

openalex publication_date 2009/01/16 · arxiv created 2009/02/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Angular variation in giant magnetoresistance and spin-transfer torque in metallic spin-valve heterostructures is analyzed theoretically in the limit of diffusive transport. It is shown that the spin-transfer torque in asymmetric spin valves can vanish in noncollinear magnetic configurations, and such a nonstandard behavior of the torque is generally associated with a nonmonotonic angular dependence of the giant magnetoresistance, with a global minimum at a noncollinear magnetic configuration.

Citations

• Current-driven excitation of magnetic multilayers

Cited by

• Multiscale approach to spin transport in magnetic multilayers
• Thermally driven magnetic precession in spin valves