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20 August 2020 Transverse spin Hall effect induced phenomena in single ferromagnet and magnetic heterostructures
John Xiao
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Proceedings Volume 11470, Spintronics XIII; 114701E (2020) https://doi.org/10.1117/12.2569356
Event: SPIE Nanoscience + Engineering, 2020, Online Only
Abstract
Spin-orbit coupling (SOC) can convert a charge current into a spin current, enabling electrical control of magnetization, the foundation of spintronic devices. A quintessential example of SOC-induced transport in a ferromagnetic conductor (FM) is the anomalous Hall effect (AHE), in which an electric current perpendicular to the magnetization generates a transverse spin current and charge accumulations on the surface. Applying similar considerations to the configuration of a current parallel to the magnetization, SOC should also give rise to a transverse spin current with spins orthogonal to both the magnetization and spin current. The transverse spins precess rapidly about the magnetization direction and exert torque on the magnetization as they dephase, in analogy with spin transfer torque. In this talk, we will discuss this transverse spin Hall effect (TSHE) leads to anomalous spin-orbit torque (ASOT) on the top and bottom surfaces of a FM. In addition, we will also discuss the
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John Xiao "Transverse spin Hall effect induced phenomena in single ferromagnet and magnetic heterostructures", Proc. SPIE 11470, Spintronics XIII, 114701E (20 August 2020); https://doi.org/10.1117/12.2569356
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KEYWORDS
Heterojunctions
Magnetism
Fermium
Frequency modulation
System on a chip
Control systems
Ferromagnetics
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