First-principles calculations of electronic structures of diluted magnetic semiconductors (Ga,Mn)As

T. Ogawa, M. Shirai, N. Suzuki, I. Kitagawa

Research output: Contribution to journalConference article

101 Citations (Scopus)

Abstract

First-principles LMTO-ASA band calculations are performed for ferromagnetic Ga1-xMnxAs (x = 1, 1/4, 1/8) by assuming supercell structures. The magnetic moment per formula is about 4 μB, and the magnetic moment of As is antiparallel to the Mn moment, i.e. valence-band carriers with As 4p character interact antiferromagnetically with Mn spins. Further the band structures show half-metallic behavior and the results for x = 1/8 indicate that the antiparallel polarization of As site is confined rather in the vicinity of Mn site.

Original languageEnglish
Pages (from-to)428-429
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume196
DOIs
Publication statusPublished - 1999 May 1
Externally publishedYes
EventProceedings of the 1998 7th European Magnetic Materials and Applications Conference, EMMA-98 - Zaragoza, Spain
Duration: 1998 Sep 91998 Sep 12

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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