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2021•IOP Conference Series Earth and Environmental ScienceOpen access

Inverse Spin Hall Effect enhancement in Pt layer doped by Ge

Mingming Li, Huaiwu Zhang

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Abstract

Abstract We systematic studied the spin pumping (SP) and inverse spin Hall effects (ISHE) in yttrium iron garnet Y3Fe5O12(YIG)/PtGe bilayer using a coplanar waveguide based broadband ferromagnetic resonance setup. More efficient spin injection occurs at the YIG/PtGe interface. The spin Hall angle of Pt (4.4%) and PtGe (9%) are obtained from the metal layer thickness dependent inverse spin Hall voltage measurement. PtGe films are promising materials with large spin Hall angles for future spintronics applications.

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Abstract We systematic studied the spin pumping (SP) and inverse spin Hall effects (ISHE) in yttrium iron garnet Y3Fe5O12(YIG)/PtGe bilayer using a coplanar waveguide based broadband ferromagnetic resonance setup. More efficient spin injection occurs at the YIG/PtGe interface. The spin Hall angle of Pt (4.4%) and PtGe (9%) are obtained from the metal layer thickness dependent inverse spin Hall voltage measurement. PtGe films are promising materials with large spin Hall angles for future spintronics applications.

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Available abstract

Abstract We systematic studied the spin pumping (SP) and inverse spin Hall effects (ISHE) in yttrium iron garnet Y3Fe5O12(YIG)/PtGe bilayer using a coplanar waveguide based broadband ferromagnetic resonance setup. More efficient spin injection occurs at the YIG/PtGe interface. The spin Hall angle of Pt (4.4%) and PtGe (9%) are obtained from the metal layer thickness dependent inverse spin Hall voltage measurement. PtGe films are promising materials with large spin Hall angles for future spintronics applications.

Key concepts: Spin pumping, Spin Hall effect, Spintronics, Ferromagnetic resonance, Yttrium iron garnet, Condensed matter physics, Spin (aerodynamics), Hall effect

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