Polarized Raman measurements of Y1-xPrxBa2Cu3O7

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

doi:10.1103/PhysRevB.42.4240

Polarized Raman measurements of Y1-xPrxBa2Cu3O7

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

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 language	English
Pages (from-to)	4240-4243
Number of pages	4
Journal	Physical Review B
Volume	42
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.42.4240
State	Published - 1990

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title = "Polarized Raman measurements of Y1-xPrxBa2Cu3O7",

abstract = "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.",

author = "Yang, {In Sang} and G. Burns and Dacol, {F. H.} and Tsuei, {C. C.}",

year = "1990",

doi = "10.1103/PhysRevB.42.4240",

language = "English",

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journal = "Physical Review B",

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T1 - Polarized Raman measurements of Y1-xPrxBa2Cu3O7

AU - Yang, In Sang

AU - Burns, G.

AU - Dacol, F. H.

AU - Tsuei, C. C.

PY - 1990

Y1 - 1990

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevB.42.4240

DO - 10.1103/PhysRevB.42.4240

M3 - Article

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VL - 42

SP - 4240

EP - 4243

JO - Physical Review B

JF - Physical Review B

IS - 7

ER -

Polarized Raman measurements of Y1-xPrxBa2Cu3O7

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