Effects of current on vortex and transverse domain walls

J. He, Z. Li, S. Zhang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

By using the spin torque model in ferromagnets, we compare the response of vortex and transverse walls to the electrical current. For a defect-free sample and a small applied current, the steady-state wall mobility is independent of the wall structure. In the presence of defects, the minimum current required to overcome the wall pinning potential is much smaller for the vortex wall than for the transverse wall. During the wall motion, the vortex wall tends to transform to the transverse wall. We construct a phase diagram for the wall mobility and the wall transformation driven by the current.

Original languageEnglish (US)
Article number08G509
JournalJournal of Applied Physics
Volume99
Issue number8
DOIs
StatePublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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