Temperature peculiarities of magnetic anisotropy in (Ga,Mn)As: The role of the hole concentration

M. Sawicki, F. Matsukura, T. Dietl, G. M. Schott, C. Ruester, G. Schmidt, L. W. Molenkamp, G. Karczewski

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

It is demonstrated by SQUID measurements that (Ga,Mn)As films can exhibit perpendicular easy axis at low temperatures, even under compressive strain, provided that the hole concentration is sufficiently small. In such films, the easy axis assume a standard in-plane orientation when the temperature is increased towards the Curie temperature. The findings are shown to corroborate the predictions of the mean-field Zener model for strained (III,Mn)V ferromagnetic semiconductors.

Original languageEnglish
Pages (from-to)7-10
Number of pages4
JournalJournal of Superconductivity and Novel Magnetism
Volume16
Issue number1
Publication statusPublished - 2003 Dec 1

Keywords

  • (Ga,Mn)As
  • Ferromagnetic semiconductors
  • Magnetic anisotropy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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