Rotation of ferromagnetically coupled Mn spins in (Ga,Mn)As by hole spins

H. Munekata, A. Oiwa, Y. Mitsumori, R. Moriya, T. Slupinski

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We present experimental data obtained from ferromagnetic p-(Ga,Mn) As layers that indicate the collective rotation of ferromagnetically coupled Mn spins by optically generated spin-polarized holes through the p-d exchange interaction. The rotation occurs reversibly between the in-plane and perpendicular directions, causing a large change in perpendicular magnetization without the application of a magnetic field. Pump-and-probe experiments suggest that the rotation of Mn spins take place in the picosecond time domain.

Original languageEnglish
Pages (from-to)411-414
Number of pages4
JournalJournal of Superconductivity and Novel Magnetism
Volume16
Issue number2
Publication statusPublished - 2003
Externally publishedYes

Keywords

  • Collective phenomenon
  • Ferromagnetic alloy semiconductors
  • Spin injection

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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