Low Temperature Phonon Properties of Orthorhombic REMnO3

ORAL

Abstract

We present the temperature dependent phonon spectra of orthorhombic-LuMnO3 and DyMnO3. The temperature dependent phonon spectra results are compared with the XAFS measurement results to probe for structural changes in the low temperature region which may coincide with ferroelectric behavior.

*This work is supported by DOE Grant DE-FG02-07ER46402 and the Consortium for Materials Properties Research in Earth Sciences under NSF Cooperative Agreement EAR01-35554,U.S. Department of Energy.

Authors

  • Zhenxian Liu

    • Geophysical Laboratory,Carnegie Institution of Washington
  • Peng Gao

    • Physics Department, New Jersey Institute of Technology
  • Haiyan Chen

    • Physics Department, New Jersey Institute of Technology
  • Trevor A. Tyson

    • Physics Department, New Jersey Institute of Technology