Current-induced magnetization reversal in terms of power dissipation

Abstract : Magnetization excitation and reversal induced by spin-transfer torques is described in terms of power received or dissipated in a macrospin system. This approach provides a clear and intuitive understanding of the effect of both applied magnetic fields and injected spin-polarized currents on magnetization reversal. It is illustrated by solving the case of magnetization reversal in a nanopillar spin valve with perpendicular magnetizations although the approach can be applied more generally. The appearance of critical currents below which spin-transfer torque is no longer efficient is explained by a break in the uniaxial symmetry of such structures.
Complete list of metadatas

Cited literature [9 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/hal-01624060
Contributor : Stephane Mangin <>
Submitted on : Thursday, November 2, 2017 - 2:00:18 PM
Last modification on : Wednesday, September 4, 2019 - 2:06:03 PM
Long-term archiving on : Saturday, February 3, 2018 - 12:31:48 PM

File

PhysRevB.84.100405 JCucchiara ...
Publisher files allowed on an open archive

Identifiers

Citation

J. Cucchiara, Eric Fullerton, A. D. Kent, J. Z. Sun, Y. Henry, et al.. Current-induced magnetization reversal in terms of power dissipation. Physical Review B : Condensed matter and materials physics, American Physical Society, 2011, 84 (10), pp.100405. ⟨10.1103/PhysRevB.84.100405⟩. ⟨hal-01624060⟩

Share

Metrics

Record views

252

Files downloads

115