Ultrafast polarization and magnetization response of multiferroic GaFeO3 using time-resolved nonlinear optical techniques

Masakazu Matsubara, Yoshio Kaneko, Jin Ping He, Hiroshi Okamoto, Yoshinori Tokura

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

We have investigated the ultrafast electric and magnetic response of multiferroic GaFeO3 induced by irradiation of a femtosecond laser pulse. By using the polarization selection rules of crystallographic and magnetic second-harmonic generation, the dynamics of electric polarization P and toroidal moment T were simultaneously and separately detected on a femtosecond time scale. The magnetization dynamics was derived by comparing the dynamics of P and T. We demonstrate the availability of time-resolved nonlinear optical techniques for the dynamical probe of multiple degrees of freedom in multiferroics.

Original languageEnglish
Article number140411
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number14
DOIs
Publication statusPublished - 2009 Apr 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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