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Article
Report number	LBL-24869
Title	Specific heat of YBa$_{2}$Cu$_{3}$O$_{7}$
Author(s)	Fisher, R A (Lawrence Berkeley Nat. Lab.) ; Gordon, J E ; Kim, S (Lawrence Berkeley Nat. Lab.) ; Phillips, N E (Lawrence Berkeley Nat. Lab.) ; Stacy, A M (Lawrence Berkeley Nat. Lab.)
Publication	1988
Imprint	Feb 1988
Number of pages	8
In:	Physica C 153-155 (1988) 1092-1095
In:	International Conference on High-temperature Superconductors and Materials and Mechanisms of Superconductivity, Interlaken, Switzerland, 29 Feb - 4 Mar 1988, pp.1092-1095
DOI	10.1016/0921-4534(88)90207-9
Subject category	Other Fields of Physics
Free keywords	YBa(2)Cu(3)O(7)
Abstract	The specific heats of five YBa$_{2}$Cu$_{3}$O$_{7}$ samples were measured in the range 0.4–100K in fields of 0, 3.5 and 7T. For two samples Cr was partially substituted for Cu. This produced only a small decrease in Tc (0.35 K/mole % Cr) but a strong suppression of the Meissner effect and †C/Tc, which provided a basis for estimating the normal-state specific heat near Tc. A third sample had Cr present in an impurity phase. Two undoped samples showed evidence of fluctuation effects near Tc. A comparison of these results with other work is given.
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