4.7 Article

Research Update: Spin transfer torques in permalloy on monolayer MoS2

Journal

APL MATERIALS
Volume 4, Issue 3, Pages -

Publisher

AMER INST PHYSICS
DOI: 10.1063/1.4943076

Keywords

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Funding

  1. Department of Electrical and Computer Engineering and College of Engineering at University of Illinois at Chicago
  2. IGNITE Award
  3. Discovery Award for the CVD growth of the MoS2 and optical characterizations
  4. U.S. Department of Energy, Office of Science, Materials Science and Engineering Division
  5. U.S. Department of Energy, Office of Science, and Basic Energy Sciences [DE-AC02-06CH11357]
  6. Division of Scientific User Facilities of the Office of Basic Energy Sciences, U.S. Department of Energy

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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. (C) 2016 Author(s).

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