Nature Communications (Sep 2018)

Spin-momentum locking and spin-orbit torques in magnetic nano-heterojunctions composed of Weyl semimetal WTe2

  • Peng Li,
  • Weikang Wu,
  • Yan Wen,
  • Chenhui Zhang,
  • Junwei Zhang,
  • Senfu Zhang,
  • Zhiming Yu,
  • Shengyuan A. Yang,
  • A. Manchon,
  • Xi-xiang Zhang

DOI
https://doi.org/10.1038/s41467-018-06518-1
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 10

Abstract

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The Fermi arcs, topological surface states of Weyl semimetals can enable the intriguing spin control and facilitate topological spintronics. Here the authors report the spin-orbit torque at the interface of WTe2/Py and attribute it to the enhanced spin accumulation by the spin-momentum locking effect of the Fermi arcs of WTe2.