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Title: Raman spectroscopic studies of Nd{sub 0.75}Sm{sub 0.25}GaO{sub 3} single crystals

Single crystals of Nd{sub 1-x}Sm{sub x}GaO{sub 3} (x= 0 and 0.25) were grown by a four mirror IR image furnace using floating zone technique. The crystals are characterized by X-ray diffraction and Raman spectroscopic measurements. NGO adopts orthorhombic structure with Pbnm symmetry and samarium substituted compound also exhibited the same structure as that of the pristine compound without secondary phases. Polarized Raman spectra are measured at ambient temperature in a back scattering geometry. Spectra exhibit low intensity first-order Raman bands. In addition, several high intensity second-order Raman bands have been observed in the frequency range 2000 to 4000 cm{sup −1}.
Authors:
;  [1] ;  [2]
  1. Materials Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam-603102, TN (India)
  2. Centre for Crystal Growth, SSN College of Engineering, Kalavakkam-603110, TN (India)
Publication Date:
OSTI Identifier:
22490489
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; AMBIENT TEMPERATURE; BACKSCATTERING; CONCENTRATION RATIO; CRYSTAL GROWTH; FREQUENCY DEPENDENCE; GALLIUM OXIDES; INFRARED RADIATION; MONOCRYSTALS; NEODYMIUM COMPOUNDS; ORTHORHOMBIC LATTICES; RAMAN SPECTRA; RAMAN SPECTROSCOPY; SAMARIUM COMPOUNDS; X-RAY DIFFRACTION; ZONE MELTING