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IJPAP Vol.45(12) [December 2007] >


Title: Specific heat jump in anisotropic YBa₂Cu₃O₇₋δ superconductor
Authors: Khanna, K M
Kirui, M S Karap
Sakwa, T W
Torongey, P K
Ayodo, K Y
Rotich, S
Keywords: Specific heat
Anisotropic
YBa₂Cu₃O₇₋δ superconductor
Density of states
Issue Date: Dec-2007
Publisher: CSIR
IPC CodeC04B10/00
Abstract: Using the exotic pairing model, the jump in the specific heat ΔC/Tc in YBa₂Cu₃O₇₋δ, for both breathing mode and buckling mode has been calculated. Its value was compared with the experimental values and it has been found that the specific heat jump in superconductor and the density of states were one fifth of the earlier reported values. This is indicative of the small fraction of carriers close to the Fermi level, which are paired and exotic pairing due to anharmonic perturbation of the apical oxygen ions leads to a lowering of ΔC/Tc.
Page(s): 991-993
ISSN: 0019-5596
Source:IJPAP Vol.45(12) [December 2007]

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