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Title: Effects of Er doping on Raman spectra and on the structural properties of YbMnO{sub 3}

Polycrystalline samples of Yb{sub 1-x}Er{sub x}MnO{sub 3} (x= 0, 0.1 and 0.2) were prepared by a solid state reaction procedure. Detailed crystal structure studies were performed using X-ray diffraction data obtained at room temperature. The application of the Rietveld method confirmed the reported hexagonal P6{sub 3}cm phase. Crystallographic parameters for the pure compounds are in agreement with those found in the literature. Changes in the lattice parameters, unit-cell volume, and polyhedral distortions observed in the compounds are explained as a function of x. Raman spectra show that the phonon peaks of Yb{sub 1-x}Er{sub x}MnO{sub 3} slightly shift to lower frequencies with doping.
Authors:
 [1] ;  [1] ;  [2]
  1. School of engineering Sciences and Technology, University of Hyderabad, Hyderabad-500046 (India)
  2. (India)
Publication Date:
OSTI Identifier:
22490568
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; HEXAGONAL LATTICES; IRON COMPOUNDS; LATTICE PARAMETERS; MANGANATES; PHONONS; POLYCRYSTALS; RAMAN SPECTRA; SOLIDS; TEMPERATURE RANGE 0273-0400 K; X-RAY DIFFRACTION; YTTERBIUM COMPOUNDS