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Contrasting effects of magnetic field on thermodynamic and resistive transitions in high- Tc cuprates

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journal contribution
posted on 27.04.2006, 14:09 authored by A.S. Alexandrov, W.H. Beere, V.V. Kabanov, W.Y. Liang
For a number of high-Tc cuprates it has been observed that the resistive transition reveals an upper critical field with increasingly negative gradient on cooling. However, the λ point of the specific heat scarcely shifts with applied magnetic field. Either phenomenon is highly unusual in itself, but also appears to be irreconcilable with one another under the BCS framework. This Letter offers an explanation of the observed phenomena on the basis of the bipolaron theory.

History

School

  • Science

Department

  • Physics

Pages

111522 bytes

Citation

ALEXANDROV et al, 1997. Contrasting effects of magnetic field on thermodynamic and resistive transitions in high- Tc cuprates. Physical Review Letters, 79(8), pp 1551–1554

Publisher

© American Physical Society

Publication date

1997

Notes

This article was published in the journal, Physical Review Letters [© American Physical Society]. It is also available at: http://link.aps.org/abstract/PRL/v79/p1551.

ISSN

0031-9007

Language

en