Current-driven domain wall motion with spin Hall effect: Reduction of threshold current density

Jisu Ryu, Kyung Jin Lee, Hyun Woo Lee

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We theoretically study the current-driven domain wall motion in the presence of both the spin Hall effect and an extrinsic pinning potential. The spin Hall effect mainly affects the damping ratio of the domain wall precession in the pinning potential. When the pinning potential is not too strong, this results in a significant reduction of a threshold current density for the depinning of a domain wall with certain polarity. We also propose one way to distinguish the spin Hall effect induced spin-transfer torque from the one induced by the Rashba spin-orbit coupling experimentally.

Original languageEnglish
Article number172404
JournalApplied Physics Letters
Volume102
Issue number17
DOIs
Publication statusPublished - 2013 Apr 29

    Fingerprint

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this