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