Vijayashree, V. ; Subramaniam, C. K. ; Srinivasan, R. ; Gopalakrishnan, I. K. ; Sastry, PVPSS. ; Yakhmi, J. V. ; Iyer, R. M. (1991) Thermoelectric power of single-phase samples of Tl2CaBa2Cu2Oy and Ba2CaSr2Cu2Oy Bulletin of Materials Science, 14 (3). pp. 827-830. ISSN 0250-4707
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Official URL: http://www.ias.ac.in/j_archive/bms/14/3/827-830/vi...
Related URL: http://dx.doi.org/10.1007/BF02744734
Abstract
Single-phase 2122 samples of thallium and bismuth superconductors were made by the precursor matrix method. The thermopower of these samples was measured in the temperature range 250 K-Tc . The thermopower was positive and decreased linearly with increasing temperature above Tc (onset). The exponential enhancement of thermopower seen in the undoped and doped YBCO was not observed in these samples. The linear variation of thermopower can be explained on the basis of either a two-band model or a narrow band model.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Thermopower; Linear Variation; Exponential Enhancement; Two-band Model |
| ID Code: | 57933 |
| Deposited On: | 30 Aug 2011 09:05 |
| Last Modified: | 18 May 2016 09:09 |
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