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Universal correlations of isotope effects in Y1−xPrxBa2Cu3O7−delta


Khasanov, R; Strässle, S; Conder, K; Pomjakushina, E; Bussmann-Holder, A; Keller, H (2008). Universal correlations of isotope effects in Y1−xPrxBa2Cu3O7−delta. Physical Review B, 77(10):104530.

Abstract

The oxygen-isotope (16O/18O) effect on the zero-temperature superconducting energy gap Delta0 is studied for a series of Y1−xPrxBa2Cu3O7−delta samples (0.0<=x<=0.45). In analogy to the isotope effect on the superconducting transition temperature, the isotope effect on Delta0 increases with decreasing gap magnitude. A generic correlation between both isotope effects is established, which has been predicted from a polaronic model.

Abstract

The oxygen-isotope (16O/18O) effect on the zero-temperature superconducting energy gap Delta0 is studied for a series of Y1−xPrxBa2Cu3O7−delta samples (0.0<=x<=0.45). In analogy to the isotope effect on the superconducting transition temperature, the isotope effect on Delta0 increases with decreasing gap magnitude. A generic correlation between both isotope effects is established, which has been predicted from a polaronic model.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2008
Deposited On:10 Feb 2009 08:17
Last Modified:06 Dec 2017 17:26
Publisher:American Physical Society
ISSN:1098-0121
Publisher DOI:https://doi.org/10.1103/PhysRevB.77.104530

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