Quantitative Study of Magnetization Reversal by Spin-Polarized Current in Magnetic Multilayer Nanopillars
- 6 November 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 89 (22), 226802
- https://doi.org/10.1103/physrevlett.89.226802
Abstract
We have studied magnetic switching by spin-polarized currents and also the magnetoresistance in sub-100-nm-diam thin-film nanostructures, with the current flowing perpendicular to the plane of the films. By independently varying the thickness of all three layers and measuring the change of the switching currents, we test the theoretical models for spin-transfer switching. In addition, the changes in the switching current and magnetoresistance as a function of the Cu layer thickness give two independent measurements of the room-temperature spin-diffusion length in Cu.
This publication has 29 references indexed in Scilit:
- Mechanisms of Spin-Polarized Current-Driven Magnetization SwitchingPhysical Review Letters, 2002
- Spin torques in ferromagnetic/normal-metal structuresPhysical Review B, 2002
- Noncollinear spin transfer in Co/Cu/Co multilayers (invited)Journal of Applied Physics, 2002
- Current-driven switching of magnetic layersPhysical Review B, 2001
- Role of spin-dependent interface scattering in generating current-induced torques in magnetic multilayersPhysical Review B, 2000
- Current-Induced Switching of Domains in Magnetic Multilayer DevicesScience, 1999
- Current-driven magnetic switching in manganite trilayer junctionsJournal of Magnetism and Magnetic Materials, 1999
- Modification of the Landau-Lifshitz equation in the presence of a spin-polarized current in colossal- and giant-magnetoresistive materialsPhysical Review B, 1998
- Emission of spin waves by a magnetic multilayer traversed by a currentPhysical Review B, 1996
- Current-driven excitation of magnetic multilayersJournal of Magnetism and Magnetic Materials, 1996