Work

Angular momentum transfer torques in spin valves with perpendicular magnetization

Year: 2011

Type: article

Abstract: Spin valves incorporating perpendicularly magnetized materials are promising structures for memory elements and high-frequency generators. We report the angular dependence of the spin-transfer torque in spin valves with perpendicular equilibrium magnetization computed by first-principles circuit theory and compare results with experiments by Rippard et al. [Phys. Rev. B 81, 014426 (2010)] on the $\mathrm{CoFe}|\mathrm{Cu}|\mathrm{CoNi}$ system. Furthermore, we predict a nonmonotonous (wavy) spin-transfer torque when the Cu spacer is replaced by a Ru layer.

Source: Physical Review B

DOI: 10.1103/physrevb.84.134403

Authors: Xingtao Jia, Ying Li, Ke Xia, Gerrit E. W. Bauer

Institutions: Beijing Normal University, Tohoku University, Institute for Materials Research, Tohoku University, Delft University of Technology

Language: English

Topic: Magnetic properties of thin films

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, European Commission, Deutsche Forschungsgemeinschaft, National Key Research and Development Program of China

Awards: Magneto Caloritronics, G1865885837