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Specific heat of the superconductor Yba2Cu4O8 from 1.5 to 300K

โœ Scribed by A. Junod; T. Graf; D. Sanchez; G. Triscone; J. Muller

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
410 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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โœฆ Synopsis

The specific heat of selected ceramic samples of the SlK-superconductor YBa2Cu40S prepared under an oxygen pressure of S5 bar is investigated. For the most homogeneous sample, the coefficient of the "linear" term at T<<T c is ~*-4.9ยฑ0.2 mJ/(K 2 mole), and the initial Debye temperature is 8(0)-350ยฑ10K. The specific heat jump at T c 6C/T c -16 mJ/(K2mo l e ), and the Sommerfeld constant evaluated at high temperatures, ~-12 mJ/(K 2 mole), are much smaller than those of YBa2Cu307'

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