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arXiv · 2307.08273

Visualization of out-of-plane spin generation in mirror symmetry broken Co

Yakun Liu·Fanrui Hu·Guoyi Shi·Hyunsoo Yang
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Abstract

Generating out-of-plane spins in sputtered materials holds immense potential for achieving field-free spin-orbit torque switching in practical applications and mass production. In this work, we present the detection of out-of-plane spins from single-layer ferromagnetic Co layers, which are visualized through helicity-dependent photomapping techniques. Our experiments have shown that out-of-plane spin generation is dependent on the magnetization direction, current density, and Co thickness. Our findings indicate that amorphous sputtered Co can be a promising candidate as an out-of-plane spin source material for industrial massive production.

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Yakun Liu, Fanrui Hu, Guoyi Shi, Hyunsoo Yang. 2023-07-17. Visualization of out-of-plane spin generation in mirror symmetry broken Co. https://doi.org/10.1063/5.0154941

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