Temperature dependent Raman scattering in YCrO{sub 3}

Journal Article · Thu Apr 24 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4873101· OSTI ID:22269407

Sharma, Y. ^[1]; Mukherjee, S. ^[2]; Garg, A. ^[3]; Gupta, R. ^[4]

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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)

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.

• OSTI ID: 22269407
• Journal Information: AIP Conference Proceedings, Vol. 1591, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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