Tunable spin-charge conversion through topological phase transitions in zigzag nanoribbons

Hang Li, Aurelien Manchon

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


We study spin-orbit torques and charge pumping in magnetic quasi-one-dimensional zigzag nanoribbons with a hexagonal lattice, in the presence of large intrinsic spin-orbit coupling. Such a system experiences a topological phase transition from a trivial band insulator to a quantum spin Hall insulator by tuning of either the magnetization direction or the intrinsic spin-orbit coupling. We find that the spin-charge conversion efficiency (i.e., spin-orbit torque and charge pumping) is dramatically enhanced at the topological transition, displaying a substantial angular anisotropy.
Original languageEnglish (US)
JournalPhysical Review B
Issue number23
StatePublished - Jun 29 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The research reported in this publication was supported
by King Abdullah University of Science and Technology


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