Peltier‐effect in the mixed state of (Bi, Pb)2Sr2Ca2Cu3Oδ
作者:
M. Galffy,
Ch. Hohn,
A. Freimuth,
期刊:
Annalen der Physik
(WILEY Available online 1994)
卷期:
Volume 506,
issue 4
页码: 215-224
ISSN:0003-3804
年代: 1994
DOI:10.1002/andp.19945060402
出版商: WILEY‐VCH Verlag
关键词: Peltier‐effect;High temperature superconductivity;vortices
数据来源: WILEY
摘要:
AbstractWe present measurements of the Peltier‐effect in the mixed state of Bi1.76Pb0.24Sr2Ca2Cu3Oδ. The Peltier‐coefficient broadens in a magnetic field quite similar to the resistivity and the thermopower. Comparison with the thermopower shows that Onsagers relation holds well. The occurrence of the Peltier‐heat in the mixed state well belowTcimplies that the electric current is accompanied by a large heat current. We show that the vortex contribution to the Peltier‐heat is negligibly small. Therefore the heat current has to be attributed to normal quasiparticle excitations. Our results indicate that this quasiparticle contribution to the heat current remains large even at temperatures far
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