SPECIFIC HEAT IN MONO-CRYSTAL YBCO: λ-LIKE ANOMALIES AT 90K AND 229K-Reference-Cited by-同舟云学术

SPECIFIC HEAT IN MONO-CRYSTAL YBCO: λ-LIKE ANOMALIES AT 90K AND 229K

Published:1988-10 Issue:05 Volume:02 Page:1171-1183
ISSN:0217-9792
Container-title:International Journal of Modern Physics B
language:en
Short-container-title:Int. J. Mod. Phys. B

Author:

Fossheim K.¹,Nes O. M.¹,Lægreid T.¹,Darlington C. N. W²,O'Connor D. A.²,Gough C. E.²

Affiliation:

1. Division of Physics, The Norwegian Institute of Technology, and Division of Applied Physics, SINTEF, N-7034 Trondheim, Norway

2. Birmingham University Consortium on High-Tc Superconductors, University of Birmingham, U.K.

Abstract

The specific heat, C p , has been measured with high precision in a mono-crystal of YBa 2 Cu 3 O 7−δ (YBCO) superconductor in the temperature range 55K-300K. The measurements provide data with a relative resolution Δ C p / C p of approximately 5 · 10−4. The main conclusions are: 1) Close to the superconducting transition the specific heat shows influence of fluctuations. 2) A reversible second order or weakly first order phase transition is found to occur at T o = 229 K .

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217979288001050

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