Contribution of the magnetic field induced by the current passing through a spin-valve element

X. Portier*, A. K. Petford-Long, T. C. Anthony, J. A. Brug

*Corresponding author for this work

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

In situ experiments in a Lorentz microscope have been performed on active spin-valve elements, and a correlation between magnetoresistance and the magnetic domain structure is shown. The presence of a magnetic field induced by the applied current is clearly demonstrated. A simple model is presented, which is in good agreement with the experimental data. In addition, the effect of stray-field coupling between the ferromagnetic layers, arising because of the free magnetic poles at the edges of the element, has been observed.

Original languageEnglish (US)
Pages (from-to)145-153
Number of pages9
JournalJournal of Magnetism and Magnetic Materials
Volume187
Issue number2
DOIs
StatePublished - Aug 14 1998

Keywords

  • Giant magnetoresistance
  • Lorentz microscopy
  • Spin valves

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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