Effect of ac on current-induced domain wall motion

W. J. Kim, T. D. Lee, S. H. Choa, S. M. Seo, Kyoung Jin Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Saitoh [Nature (London) 432, 203 (2004)] have reported the experimental result showing the interplay of a transverse domain wall with an electrical ac of megahertz-range frequencies. They observed a single peak of resistance in the frequency range and interpreted it with a nonadiabatic spin torque. It was argued that an ac current can induce a micrometer-range displacement of domain wall. We reconstructed the experiment in micromagnetic simulations considering the local nonzero nonadiabatic spin torque. We could not observe either an explicit single peak in the frequency-dependent resistance or an eventual displacement of domain wall by use of an ac. It indicates the local nonadiabatic torque is inappropriate to explain the experimental results of ac-induced domain wall motion. Other approaches such as the nonlocal nonadiabatic spin torque may be needed.

Original languageEnglish
Article number09A504
JournalJournal of Applied Physics
Volume101
Issue number9
DOIs
Publication statusPublished - 2007 May 21

Fingerprint

domain wall
torque
frequency ranges
micrometers
simulation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Effect of ac on current-induced domain wall motion. / Kim, W. J.; Lee, T. D.; Choa, S. H.; Seo, S. M.; Lee, Kyoung Jin.

In: Journal of Applied Physics, Vol. 101, No. 9, 09A504, 21.05.2007.

Research output: Contribution to journalArticle

Kim, W. J. ; Lee, T. D. ; Choa, S. H. ; Seo, S. M. ; Lee, Kyoung Jin. / Effect of ac on current-induced domain wall motion. In: Journal of Applied Physics. 2007 ; Vol. 101, No. 9.
@article{f447930e6a0f456db4c99385e0a04996,
title = "Effect of ac on current-induced domain wall motion",
abstract = "Saitoh [Nature (London) 432, 203 (2004)] have reported the experimental result showing the interplay of a transverse domain wall with an electrical ac of megahertz-range frequencies. They observed a single peak of resistance in the frequency range and interpreted it with a nonadiabatic spin torque. It was argued that an ac current can induce a micrometer-range displacement of domain wall. We reconstructed the experiment in micromagnetic simulations considering the local nonzero nonadiabatic spin torque. We could not observe either an explicit single peak in the frequency-dependent resistance or an eventual displacement of domain wall by use of an ac. It indicates the local nonadiabatic torque is inappropriate to explain the experimental results of ac-induced domain wall motion. Other approaches such as the nonlocal nonadiabatic spin torque may be needed.",
author = "Kim, {W. J.} and Lee, {T. D.} and Choa, {S. H.} and Seo, {S. M.} and Lee, {Kyoung Jin}",
year = "2007",
month = "5",
day = "21",
doi = "10.1063/1.2713211",
language = "English",
volume = "101",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "9",

}

TY - JOUR

T1 - Effect of ac on current-induced domain wall motion

AU - Kim, W. J.

AU - Lee, T. D.

AU - Choa, S. H.

AU - Seo, S. M.

AU - Lee, Kyoung Jin

PY - 2007/5/21

Y1 - 2007/5/21

N2 - Saitoh [Nature (London) 432, 203 (2004)] have reported the experimental result showing the interplay of a transverse domain wall with an electrical ac of megahertz-range frequencies. They observed a single peak of resistance in the frequency range and interpreted it with a nonadiabatic spin torque. It was argued that an ac current can induce a micrometer-range displacement of domain wall. We reconstructed the experiment in micromagnetic simulations considering the local nonzero nonadiabatic spin torque. We could not observe either an explicit single peak in the frequency-dependent resistance or an eventual displacement of domain wall by use of an ac. It indicates the local nonadiabatic torque is inappropriate to explain the experimental results of ac-induced domain wall motion. Other approaches such as the nonlocal nonadiabatic spin torque may be needed.

AB - Saitoh [Nature (London) 432, 203 (2004)] have reported the experimental result showing the interplay of a transverse domain wall with an electrical ac of megahertz-range frequencies. They observed a single peak of resistance in the frequency range and interpreted it with a nonadiabatic spin torque. It was argued that an ac current can induce a micrometer-range displacement of domain wall. We reconstructed the experiment in micromagnetic simulations considering the local nonzero nonadiabatic spin torque. We could not observe either an explicit single peak in the frequency-dependent resistance or an eventual displacement of domain wall by use of an ac. It indicates the local nonadiabatic torque is inappropriate to explain the experimental results of ac-induced domain wall motion. Other approaches such as the nonlocal nonadiabatic spin torque may be needed.

UR - http://www.scopus.com/inward/record.url?scp=34248549985&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34248549985&partnerID=8YFLogxK

U2 - 10.1063/1.2713211

DO - 10.1063/1.2713211

M3 - Article

VL - 101

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 9

M1 - 09A504

ER -