17 August 2014 Spin-orbit torques in ferromagnetic heterostructures: fundamentals and applications (presentation video)
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Current-induced spin torques are of great interest to manipulate the orientation of nanomagnets without applying external magnetic fields. They find direct application in non-volatile data storage and logic devices. Recent demonstrations of perpendicular magnetization switching induced by in-plane current injection in ferromagnetic heterostructures have drawn attention to a class of spin torques based on orbital-to-spin momentum transfer (SOTs), which is alternative to pure spin transfer torque (STT) between non collinear magnetic layers and amenable to more diversified device functions. We will present advance made to build first perpendicular SOT-MRAM devices and to describe the symmetry and amplitudes of SOTs, revealing unexpected physics.
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Kevin Garello, Kevin Garello, Can Onur Avci, Can Onur Avci, Mihai Miron, Mihai Miron, Olivier Boulle, Olivier Boulle, Frank Freimuth, Frank Freimuth, Yuriy Mokrousov, Yuriy Mokrousov, Stefan Blügel, Stefan Blügel, Gilles Gaudin, Gilles Gaudin, Pietro Gambardella, Pietro Gambardella, "Spin-orbit torques in ferromagnetic heterostructures: fundamentals and applications (presentation video)", Proc. SPIE 9167, Spintronics VII, 91671S (17 August 2014); doi: 10.1117/12.2060795; https://doi.org/10.1117/12.2060795

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