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Enhancement of thermopower in the high Tc superconductor YBa2Cu3O7 and related compounds
Published in Springer India
Volume: 29
Issue: 2
Pages: L225 - L230
The absolute thermopower of single phase YBa2Cu3O7 and Y0.8Er0.2Ba2Cu3O7 has been measured in the range 250 K to the superconducting transition temperature. It is found that these compounds show a large enhancement of thermopower in the range 150 K down to Tc. This enhancement shows a steep exponential drop as the temperature increases from the transition temperature. The temperature variation of the enhancement is too steep to be accounted for by electron-phonon or electron-local structural excitation mechanisms. © 1987 Indian Academy of Sciences.
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JournalData powered by TypesetPramana
PublisherData powered by TypesetSpringer India
Open AccessNo