Distribution of magnetic domain pinning fields in Ga1-x Mnx As ferromagnetic films

Jungtaek Kim, D. Y. Shin, Sanghoon Lee, X. Liu, J. K. Furdyna

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The distribution of magnetic domain pinning fields was determined in ferromagnetic GaMnAs films using the angular dependence of the planar Hall effect. A major difference is found between the pinning field distribution in as-grown and in annealed films: the former showing a strikingly narrower distribution than the latter. This effect, which we ascribe to differences in the degree of uniformity of magnetic anisotropy, provides a better understanding of magnetic domain landscape in GaMnAs, a subject of current intense interest.

Original languageEnglish
Article number075309
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number7
DOIs
Publication statusPublished - 2008 Aug 7

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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