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.
Original language | English |
---|---|
Pages (from-to) | 8325-8328 |
Number of pages | 4 |
Journal | Physical Review B |
Volume | 36 |
Issue number | 16 |
DOIs | |
State | Published - 1987 |