Raman spectroscopy and normal-mode assignments for Ba/sub 2/MCu/sub 3/O/sub x/ (M = Gd,Y) single crystals
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
Single crystals of superconducting Ba/sub 2/MCu/sub 3/O/sub x/ (M = Y, Gd) have been used for a study of the polarization dependence of the Raman spectra so as to better understand the lattice dynamics and the role of O defects in these materials. Several prominent vibrational bands have strong polarization dependence and can all be attributed to specific modes with A/sub g/ symmetry. Broad features between 500 and 600 cm/sup -1/ are suggested to be related to O vacancy disorder.
- Research Organization:
- ATandT Bell Laboratories, 600 Mountain Avenue, Murray Hill, New Jersey 07974-2070
- OSTI ID:
- 5619536
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Journal Issue: 16 Vol. 36:16; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
ELEMENTS
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
MONOCRYSTALS
NONMETALS
OSCILLATION MODES
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POINT DEFECTS
POLARIZATION
RAMAN SPECTRA
RARE EARTH COMPOUNDS
SPECTRA
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
VACANCIES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
ELEMENTS
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
MONOCRYSTALS
NONMETALS
OSCILLATION MODES
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POINT DEFECTS
POLARIZATION
RAMAN SPECTRA
RARE EARTH COMPOUNDS
SPECTRA
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
VACANCIES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES