Manipulation of ferromagnets via the spin-selective optical Stark effect

Alireza Qaiumzadeh, Gerrit E.W. Bauer, Arne Brataas

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

We investigate the nonresonant all-optical switching of magnetization. We treat the inverse Faraday effect (IFE) theoretically in terms of the spin-selective optical Stark effect for linearly or circularly polarized light. In the dilute magnetic semiconductors (Ga,Mn)As, strong laser pulses below the band gap induce effective magnetic fields of several teslas in a direction which depends on the magnetization direction as well as the light polarization and direction. Our theory demonstrates that the polarized light catalyzes the angular momentum transfer between the lattice and the magnetization.

Original languageEnglish
Article number064416
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume88
Issue number6
DOIs
Publication statusPublished - 2013 Aug 19

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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