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arXiv · 1109.6074

Angular momentum transfer torques in spin valves with perpendicular magnetization

Xingtao Jia·Ying Li·Ke Xia·Gerrit E. W. Bauer
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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 W.H. Rippard c.s. [Phys. Rev. B 81, 014426 (2010)] on the CoFe|Cu|CoNi system. Furthermore, we predict a non-monotonous ("wavy") spin-transfer torque when the Cu spacer is replaced by a Ru layer.

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Xingtao Jia, Ying Li, Ke Xia, Gerrit E. W. Bauer. 2011-09-28. Angular momentum transfer torques in spin valves with perpendicular magnetization. https://doi.org/10.1103/physrevb.84.134403

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