Vector-resolved magnetooptic kerr effect measurements of spin-orbit torque

Halise Celik, Harsha Kannan, Tao Wang, Alex R. Mellnik, Xin Fan, Xinran Zhou, Rasoul Barri, Daniel C. Ralph, Matthew F. Doty, Virginia O. Lorenz, John Q. Xiao

Research output: Contribution to journalArticlepeer-review

Abstract

We demonstrate simultaneous detection of current-driven dampinglike and fieldlike spin-orbit torques in heavy metal/ferromagnetic metal bilayers by measuring all three magnetization components mx,my, and mz using a vector-resolved magnetooptic Kerr effect (MOKE) technique based on quadrant detection. We investigate the magnitude and direction of spin-orbit torques in a series of platinum/permalloy samples, finding good agreement with results obtained via polar and quadratic MOKE measurements without quadrant detection.

Original languageEnglish (US)
Article number8556064
JournalIEEE Transactions on Magnetics
Volume55
Issue number1
DOIs
StatePublished - Jan 2019

Keywords

  • Magneto-optic effects
  • spintronics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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