The d-wave contribution to the low temperature specific heat of YBa2Cu3O7

Authors
Wang, YX Junod, A Revaz, B Erb, A
Citation
Yx. Wang et al., The d-wave contribution to the low temperature specific heat of YBa2Cu3O7, PHYSICA C, 341, 2000, pp. 1073-1074
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
341
Year of publication
2000
Part
2
Pages
1073 - 1074
Database
ISI
SICI code
0921-4534(200011)341:<1073:TDCTTL>2.0.ZU;2-#
Abstract
We have measured the low temperature specific heat of a single crystal of Y Ba2Cu3O7 grown in BaZrO3 which contains a very small amount of paramagnetic defects. The presence of line nodes in the gap is directly seen in the dif ference C(B,T)-C(0,T) as a function of the magnetic field, which behaves as expected from the d-wave symmetry. Comparison with theory provides new inf ormation about the low energy excitation spectrum near the nodes.