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Title: Temperature dependent Raman scattering in YCrO{sub 3}

High quality polycrystalline YCrO{sub 3} samples were synthesized using solid-state-reaction method. The samples were subsequently characterized using X-ray diffraction and magnetometry. Further, temperature dependent Raman spectroscopy over a spectral range from 100 to 800 cm{sup −1} was used to examine the variation of phonons as a function of temperature from 90 to 300 K. In the low temperature ferroelectric phase of YCrO{sub 3}, the observed phonon spectra showed softening of some Raman modes below the magnetic ordering temperature (T{sub N} ∼ 142K), suggesting a coupling between the spin and phonon degrees of freedom.
Authors:
;  [1] ;  [2] ;  [3] ;  [4]
  1. Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur-208016 (India)
  2. Department of Physics, Indian Institute of Technology Kanpur, Kanpur-208016 (India)
  3. Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur-208016 (India)
  4. Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur-208016, India and Department of Physics, Indian Institute of Technology Kanpur, Kanpur-208016 (India)
Publication Date:
OSTI Identifier:
22269407
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COUPLING; DEGREES OF FREEDOM; FERROELECTRIC MATERIALS; MAGNETIZATION; PHONONS; POLYCRYSTALS; RAMAN EFFECT; RAMAN SPECTROSCOPY; SOLIDS; SPECTRA; SPIN; SYNTHESIS; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION