Detection of current-driven magnetic domain wall deformation using anisotropic magnetoresistance effect

H. Maekawa, T. Nozaki, S. Kasai, M. Mizuguchi, M. Shiraishi, T. Ono, Y. Suzuki

Research output: Contribution to journalArticlepeer-review

Abstract

We report on an electrical detection of current driven domain wall (DW) deformation induced by a current pulse injection in arc-shaped permalloy (Py) submicron wires. Current polarity and pulse length dependence were investigated under an assisting external magnetic field. Initial DW states prepared by an application of a large magnetic field were distributed to two distinct DW states. A current pulse application promoted transition between them. In addition, the third DW state was established only by an application of the short pulses (<50 ns). This result suggests the possibility of the high-speed control of the DW dynamics.

Original languageEnglish
Pages (from-to)3987-3990
Number of pages4
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume204
Issue number12
DOIs
Publication statusPublished - 2007 Dec

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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