ChemInform Abstract: Raman Spectroscopy of the High Tc Superconductor YBa2Cu3O7 and the Semiconductor YBa2Cu3O6.
Abstract
A high frequency mode has been identified in the Raman spectrum of YBa2Cu3O7, which is shifted to much lower frequencies in the oxygen deficient, nonsuperconducting compound YBa2Cu3O6.
ChemInform Abstract
A high frequency mode has been identified in the Raman spectrum of YBa2Cu3O7, which is shifted to much lower frequencies in the oxygen deficient, nonsuperconducting compound YBa2Cu3O6. This mode is assigned to the symmetric stretch of the terminal Cu-O bonds in the linear chain of corner-shared CuO3 units; this assignment is consistent with the structural models derived from diffraction experiments.