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

Journal Article · Wed Jun 24 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4918052· OSTI ID:22490489

Ravindran, T. R. ^[1]; Daniel, D. J. ^[2]

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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)

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}.

• OSTI ID: 22490489
• Journal Information: AIP Conference Proceedings, Vol. 1665, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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