Physical Review Letters· 2012Q1
Current-Induced Switching of Perpendicularly Magnetized Magnetic Layers Using Spin Torque from the Spin Hall Effect
- 1,833citations
- Q1SCImago
- 2012year
Short summary
The spin-Hall effect (SHE) in Pt can generate sufficient spin torque to efficiently switch the magnetization of a perpendicularly magnetized Co layer in a Pt/Co bilayer.
AI-generated from the title and abstract; the full text is not read.
Key points
- The spin-Hall effect in Pt generates spin torque capable of switching perpendicular Co magnetization in a Pt/Co bilayer.
- Calculated switching phase diagrams align quantitatively with experimental findings.
- Optimized SHE torque can lead to memory and logic devices with similar critical currents and improved reliability.
- SHE torque is also suggested to influence current-driven domain wall motion in Pt/ferromagnet bilayers.
AI-generated from the title and abstract; the full text is not read.
Abstract
We show that in a perpendicularly magnetized Pt/Co bilayer the spin-Hall effect (SHE) in Pt can produce a spin torque strong enough to efficiently rotate and switch the Co magnetization. We calculate the phase diagram of switching driven by this torque, finding quantitative agreement with experiments. When optimized, the SHE torque can enable memory and logic devices with similar critical currents and improved reliability compared to conventional spin-torque switching. We suggest that the SHE torque also affects current-driven magnetic domain wall motion in Pt/ferromagnet bilayers.
The authors' abstract, as published at the source. Physical Review Letters, 2012 · DOI ↗
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Field: Atomic and Molecular Physics, and Optics
Atomic and Molecular Physics, and OpticsPhysics and Astronomy