Polarized Raman measurements of Y1-xPrxBa2Cu3O7

In Sang Yang, G. Burns, F. H. Dacol, C. C. Tsuei

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


We report polarized Raman measurements on small single crystals embedded in Y1-xPrxBa2Cu3O7 polycrystalline pellets. The measurements show two-mode behavior in the Cu-O bending mode of the CuO2 planes (B1g mode). The increase in frequency with x of the Ba-Ba stretching mode and the chain copper apical oxygen Cu(1)-O(4) stretching mode is consistent with hole localization on Ba sites due to Ba 5dO 2p covalency. This localization may be related to the suppression of superconductivity in this compound, which increases with increasing x.

Original languageEnglish
Pages (from-to)4240-4243
Number of pages4
JournalPhysical Review B
Issue number7
StatePublished - 1990


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