| Issue |
Europhys. Lett.
Volume 75, Number 5, September 2006
|
|
|---|---|---|
| Page(s) | 804 - 810 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2006-10176-7 | |
| Published online | 02 August 2006 | |
Anomalous Nernst effect in the vortex-liquid phase of high-temperature superconductors by layer decoupling
Department of Physics and Astronomy, California State University Los Angeles, CA 90032, USA
Received:
5
June
2006
Accepted:
13
July
2007
Linear diamagnetism is predicted in the vortex-liquid phase of layered superconductors
at temperatures just below the mean-field phase transition on the basis of
a high-temperature analysis of the corresponding frustrated XY model.
The diamagnetic susceptibility, and the Nernst signal by implication,
is found to vanish with temperature as
in the vicinity of the mean-field transition at 
.
Quantitative agreement with recent experimental observations of a diamagnetic signal
in the vortex-liquid phase of high-temperature superconductors is obtained.
PACS: 74.25.Dw – Superconductivity phase diagrams / 74.25.Ha – Magnetic properties / 74.25.Qt – Vortex lattices, flux pinning, flux creep
© EDP Sciences, 2006
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