Specific heat of Y0.8Ca0.2Ba2Cu3O7-delta in magnetic fields

Authors
Luo, JL Loram, JW Cooper, JR Mirza, KA Jin, D
Citation
Jl. Luo et al., Specific heat of Y0.8Ca0.2Ba2Cu3O7-delta in magnetic fields, PHYSICA B, 284, 2000, pp. 1045-1046
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
284
Year of publication
2000
Part
1
Pages
1045 - 1046
Database
ISI
SICI code
0921-4526(200007)284:<1045:SHOYIM>2.0.ZU;2-S
Abstract
We measured the specific heat of Y0.8Ca0.2Ba2Cu3O7-delta samples with diffe rent oxygen content from liquid helium temperature to room temperature in m agnetic fields up to 13 T. We found that there is different hole concentrat ion dependence and field dependence of electronic specific heat between ove rdoped samples and underdoped samples while T much less than T-c. In normal state, we observed the normal state pseudogap which is magnetic field-inde pendent. (C) 2000 Elsevier Science B.V. All rights reserved.