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Title: Composition-dependent structural and Raman spectroscopic studies on Y{sub 1-x}Ho{sub x}CrO{sub 3} (0≤x≤0.1)

In this paper we report the synthesis and structural characterization of polycrystalline holmium doped YCrO{sub 3} samples prepared by solid state reaction method. X-ray diffraction studies confirm the formation of single phase pure materials. Increasing Holmium substitution in Y{sub 1-x}Ho{sub x}CrO{sub 3} (0≤x≤0.1) allows a quasi-continuous tuning of the lattice in this multiferroic chromite without any magnetic interference effects of rare-earth ions. The composition dependent Raman scattering studies at room temperature reveal decreasing Raman mode frequencies with increasing holmium content consistent with the X-ray data. Decreasing phonon frequency shifts with increasing holmium content occurs, depending on the average rare-earth ion radius determined by the concentration of Y{sup +3} and Ho{sup +3}.
Authors:
 [1] ;  [2] ;  [1] ;  [3]
  1. Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur-208016 (India)
  2. Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur-208016 (India)
  3. (India)
Publication Date:
OSTI Identifier:
22490624
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABUNDANCE; CHROMATES; CONCENTRATION RATIO; DOPED MATERIALS; HOLMIUM; HOLMIUM COMPOUNDS; INTERFERENCE; PHONONS; POLYCRYSTALS; RAMAN EFFECT; SOLIDS; SYNTHESIS; TEMPERATURE RANGE 0273-0400 K; X-RAY DIFFRACTION; YTTRIUM COMPOUNDS; YTTRIUM IONS