Research Update: Spin transfer torques in permalloy on monolayer MoS2

Research Update: Spin transfer torques in permalloy on monolayer MoS2

We observe current induced spin transfer torque resonance in permalloy (Py) grown on monolayer MoS2. By passing rf current through the Py/MoS2 bilayer, field-like and damping-like torques are induced which excite the ferromagnetic resonance of Py. The signals are detected via a homodyne voltage from...

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Bibliographic Details
Main Authors: Wei Zhang, Joseph Sklenar, Bo Hsu, Wanjun Jiang, Matthias B. Jungfleisch, Jiao Xiao, Frank Y. Fradin, Yaohua Liu, John E. Pearson, John B. Ketterson, Zheng Yang, Axel Hoffmann
Format: Article
Language:English
Published: AIP Publishing LLC 2016-03-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4943076
Description
Summary:We observe current induced spin transfer torque resonance in permalloy (Py) grown on monolayer MoS2. By passing rf current through the Py/MoS2 bilayer, field-like and damping-like torques are induced which excite the ferromagnetic resonance of Py. The signals are detected via a homodyne voltage from anisotropic magnetoresistance of Py. In comparison to other bilayer systems with strong spin-orbit torques, the monolayer MoS2 cannot provide bulk spin Hall effects and thus indicates the purely interfacial nature of the spin transfer torques. Therefore our results indicate the potential of two-dimensional transition-metal dichalcogenide for the use of interfacial spin-orbitronics applications.
ISSN:2166-532X

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