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Titolo:
Vibrational spectroscopic studies on Ba0.8Sr0.2TiO3 thin films prepared byRF sputtering technique
Autore:
Samantaray, CB; Roy, A; Roy, M; Mukherjee, ML; Ray, SK;
Indirizzi:
Indian Inst Technol, Dept Phys & Meteorol, Kharagpur 721302, W Bengal, India Indian Inst Technol Kharagpur W Bengal India 721302 1302, W Bengal, India Bhabha Atom Res Ctr, Novel Mat & Struct Chem Div, Mumbai 400085, India Bhabha Atom Res Ctr Mumbai India 400085 t Chem Div, Mumbai 400085, India
Titolo Testata:
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
fascicolo: 1, volume: 63, anno: 2002,
pagine: 65 - 69
SICI:
0022-3697(200201)63:1<65:VSSOBT>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
BARIUM STRONTIUM-TITANATE; HIGH-PRESSURE RAMAN; TEMPERATURE-DEPENDENCE; OPTICAL-PROPERTIES; BATIO3; FERROELECTRICITY; DEVICES; LAYER;
Keywords:
optical materials; ferroelectricity; thin films; phonons;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Roy, A Indian Inst Technol, Dept Phys & Meteorol, Kharagpur 721302, W Bengal, India Indian Inst Technol Kharagpur W Bengal India 721302 Bengal, India
Citazione:
C.B. Samantaray et al., "Vibrational spectroscopic studies on Ba0.8Sr0.2TiO3 thin films prepared byRF sputtering technique", J PHYS CH S, 63(1), 2002, pp. 65-69

Abstract

Thin films of Ba0.8Sr0.2TiO3 have been deposited on p-type Si substrate byradio frequency magnetron sputtering. Polycrystalline bulk Ba0.8Sr0.2TiO3 sample has also been studied for comparison. X-ray diffraction patterns reveal that both the bulk sample and thin films are polycrystalline without any preferential orientation and belong to paraelectric cubic phase. We have compared the room temperature Raman and IR spectra of powder and thin films(both annealed and as-deposited) of Ba0.8Sr0.2TiO3. The extra feature in the Raman spectrum for the annealed film has been explained as due to the presence of intergrain stresses from the submicron size grains in it. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 15:24:23