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Abrupt increase in thermal diffusion belowT c in YBa2Cu3O7−δ |
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| Authors: | Johney Isaac Jacob Philip B K Chaudhuri |
| Affiliation: | (1) Department of Physics, Cochin University of Science and Technology, 682 022 Cochin, India;(2) Department of Solid State Physics, Indian Association for the Cultivation of Science, 700 032 Calcutta, India |
| Abstract: | We report the variation of the thermal diffusivity in the high temperature superconductor YBa2Cu3O7−δ below the transition temperature measured using photo-acoustic technique α is found to increase sharply belowT c. Qualitative explanations are given. |
| Keywords: | Thermal diffusivity superconducting transition Y-Ba-Cu-O system photo-acoustic technique |
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