Large Second Harmonic Kerr rotation in GaFeO3 thin films on YSZ buffered Silicon

ORAL

Abstract

GaFeO$_{3}$ (GFO) simultaneously exhibits ferromagnetic and pyroelectric properties. Recently, magnetization-induced second harmonic generation (MSHG) have been investigated in single crystal GFO (Y. Ogawa et al., Phys. Rev. Lett. 92, (2004) 047401), where a remarkably large Kerr rotation has been found. We report on MSHG measurements from GFO thin films on YSZ buffered Silicon at room temperature (above $T_{C})$ and at 100 K (below $T_{C})$, where a Kerr rotation of $\sim $15 degrees in the ferromagnetic state is observed.

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Authors

  • Ernst Knoesel

  • Keith F. McDonald

  • Tim Osedach

  • Samuel E. Lofland

    • Rowan University
    • Dept. of Physics and Astronomy, Rowan Univ. Glassboro, NJ
    • Dept of Physics and Astronomy

  • S.B. Ogale

    • Univeristy of Maryland, College Park
    • University of Maryland

  • S. Dhar

  • S.R. Shinde

  • Darshan C. Kundaliya

  • T. Venkatesan

    • Center for Superconductivity Research, Dept. of Physics, Univ. of Maryland, College Park
    • Dept of Physics, University of Maryland College Park
    • Center for Superconductivity Research, Department of Physics, University of Maryland, College Park