Title

Raman Spectroscopy and Normal-Mode Assignments for Ba2MCu3Ox (M=Gd,Y) Single Crystals

Document Type

Article

Publication Date

1-1-1987

Abstract

Single crystals of superconducting Ba2MCu3Ox (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 Ag symmetry. Broad features between 500 and 600 cm-1 are suggested to be related to O vacancy disorder.

DOI

10.1103/PhysRevB.36.8325

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