Magnetotransport and trapping of magnetic domain walls in spin valves with nanoconstrictions

S. J. Noh, B. S. Chun, H. C. Wu, I. V. Shvets, I. C. Chu, M. Abid, S. Serrano-Guisan, Young-geun Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In a magnetic nanowire, a magnetic domain wall (DW) can move along the wire when an applied magnetic field or a spin-polarized current is applied. A magnetic spin-valve device composed of two nanowires connected by a nanosized constriction was prepared, on which the presence of a pinned DW by nanoconstriction was detected by giant magnetoresistance effect. When the magnetic wire has a nanoconstriction, the DW configuration and width were largely affected by the shape of nanoconstriction. An asymmetric magnetotransport behavior observed in the experiments was interpreted by a micromagnetic modeling study.

Original languageEnglish
Article number6027720
Pages (from-to)2436-2439
Number of pages4
JournalIEEE Transactions on Magnetics
Volume47
Issue number10
DOIs
Publication statusPublished - 2011 Oct 1

Fingerprint

Galvanomagnetic effects
Magnetic domains
Domain walls
Nanowires
Wire
Giant magnetoresistance
Magnetic fields
Experiments

Keywords

  • magnetic domain wall (DW)
  • magnetoresistance
  • Nanoconstriction
  • nanowire

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Magnetotransport and trapping of magnetic domain walls in spin valves with nanoconstrictions. / Noh, S. J.; Chun, B. S.; Wu, H. C.; Shvets, I. V.; Chu, I. C.; Abid, M.; Serrano-Guisan, S.; Kim, Young-geun.

In: IEEE Transactions on Magnetics, Vol. 47, No. 10, 6027720, 01.10.2011, p. 2436-2439.

Research output: Contribution to journalArticle

Noh, SJ, Chun, BS, Wu, HC, Shvets, IV, Chu, IC, Abid, M, Serrano-Guisan, S & Kim, Y 2011, 'Magnetotransport and trapping of magnetic domain walls in spin valves with nanoconstrictions', IEEE Transactions on Magnetics, vol. 47, no. 10, 6027720, pp. 2436-2439. https://doi.org/10.1109/TMAG.2011.2158400
Noh, S. J. ; Chun, B. S. ; Wu, H. C. ; Shvets, I. V. ; Chu, I. C. ; Abid, M. ; Serrano-Guisan, S. ; Kim, Young-geun. / Magnetotransport and trapping of magnetic domain walls in spin valves with nanoconstrictions. In: IEEE Transactions on Magnetics. 2011 ; Vol. 47, No. 10. pp. 2436-2439.
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