Fluctuational ettingshausen effect in single crystals of YBa2Cu3O7-δ

L. Lu, Y. X. Jia, M. Fuhrer, A. Zettl

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We have studied the Ettingshausen effect in single crystals of YBa2Cu3O7-δ near the superconducting transition temperature Tc. Two distinct regimes were found in the field dependence of the Ettingshausen coefficient - a low-field regime where flux-flow dominates and a high-field regime where fluctuation dominates. The result is in agreement with Ullah and Dorsey's scaling theory for fluctuational Ettingshausen effect, and seems also consistent with Maki's mean-field theory when the temperature of the sample is several Kelvins away from Tc.

Original languageEnglish
Pages (from-to)1547-1548
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Issue numberPART 3
Publication statusPublished - 1 Jan 1997
Externally publishedYes

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