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:10.1038/s41467-018-06518-1

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

Affiliations

Peng Li: King Abdullah University of Science and Technology, Physical Science and Engineering Division
Weikang Wu: Research Laboratory for Quantum Materials, Singapore University of Technology and Design
Yan Wen: King Abdullah University of Science and Technology, Physical Science and Engineering Division
Chenhui Zhang: King Abdullah University of Science and Technology, Physical Science and Engineering Division
Junwei Zhang: King Abdullah University of Science and Technology, Physical Science and Engineering Division
Senfu Zhang: King Abdullah University of Science and Technology, Physical Science and Engineering Division
Zhiming Yu: Research Laboratory for Quantum Materials, Singapore University of Technology and Design
Shengyuan A. Yang: Research Laboratory for Quantum Materials, Singapore University of Technology and Design
A. Manchon: King Abdullah University of Science and Technology, Physical Science and Engineering Division
Xi-xiang Zhang: King Abdullah University of Science and Technology, Physical Science and Engineering Division

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.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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