| Issue |
Europhys. Lett.
Volume 34, Number 6, May III 1996
|
|
|---|---|---|
| Page(s) | 453 - 458 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00478-8 | |
| Published online | 01 September 2002 | |
Fourfold symmetry of vortex state of d-wave superconductivity and torque magnetometry
1
Department of Physics and Interdisciplinary Research Center in Physical Science,
Hallym
University - Chunchon 200-702, South Korea
2
Department of Physics and Astronomy, University of Southern California,
Los Angeles, California 90089-0484, USA
Received:
23
January
1996
Accepted:
2
April
1996
We have shown earlier that the upper critical field Hc2
of 
-superconductor in a magnetic field
in the (a,b)-plane exhibits the fourfold
symmetry, though this anisotropy vanishes like 
as the temperature T approaches the transition
temperature Tc. We propose here that the torque
within the (a,b)-plane should provide a sensitive
means to determine this anisotropy.
PACS: 74.60.Ec – Mixed state, critical fields, and surface sheath / 74.72.-h – High-Tc cuprates
© EDP Sciences, 1996
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