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Anomalous enhancement of Hc1 in layered copper oxide superconductors

โœ Scribed by T. Koyama; N. Takezawa; M. Tachiki

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
297 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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โœฆ Synopsis

To understand the anomalous temperature dependence of the lower critical field H 1 observed in high-T copper oxides we use a model of multi-layer structure which is compose8 of arrays of superc5nducting and normal layers. Superconductivity in the normal layers is induced by a proximity effect in this model. The superconducting order parameter on the normal layers is much enhanced at low temperatures. As a result of this enhancement H 1 is drastically enhanced at low temperatures. The calculated results for H 1 explains the anofflalous enhancement of H 1 at low temperatures observed in several oxide super~onductors. c

๐Ÿ“œ SIMILAR VOLUMES

Electronic structure and electron-phonon
Electronic structure and electron-phonon coupling in layered copper oxide superconductors
โœ Warren E. Pickett; Ronald E. Cohen; Henry Krakauer ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 523 KB

The invited talk was given by W.E. Pickett. Experimental data on the layered Cu-0 superconductors seem more and more to reflect normal Fermi-liquid behavior and substantial correspondence with band structure predictions. Recent self-consistent, microscopic band theoretic calculations of the electron