Raman Scattering from High-Tc Superconductor YBa2Cu3O7-x and Its Analogs

Abstract
Raman spectra of polycrystalline samples of orthorhombic YBa2Cu3O7-x , HoBa2Cu3O7-x , NdBa2Cu3O7-x , metastable tetragonal YBa2Cu3O7-x , and Y2BaCuO5 were measured at room temperature. Spectral differences among these materials were clarified and tentative assignments of the observed bands to the Raman active lattice vibrations were proposed.

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