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Thermoelectromotive force in Bi2Sr2Ca2Cu4O11 bismuth-based high-temperature superconductor |
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| Authors: | S. S. Ragimov and I. N. Askerzade |
| Affiliation: | 1.Institute of Physics, National Academy of Sciences of Azerbaijan, pr. Dzhavida 33, Baku, AZ1143, Azerbaijan ;2.Department of Computer Engineering, Engineering Faculty, Ankara University, 06100, Tandogan, Ankara, Turkey ; |
| Abstract: | The temperature dependence of the thermoemf in Bi2Sr2Ca2Cu4O11 bismuth-based high-temperature superconductors is studied. The thermoemf is positive at high temperatures (T > 300 K) and negative at low temperatures. As the temperature decreases, the thermoemf reaches a maximum slightly above T c and then sharply drops to zero. The results can be explained in the framework of the two-band theory with a linear temperature term. |
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