Ghosh, A. ; Chakravorty, D. (1990) Hopping transport in the precursor glasses of the superconducting system Bi-Sr-Ca-Cu-O Journal of Physics: Condensed Matter, 2 (3). pp. 649-660. ISSN 0953-8984
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Official URL: http://iopscience.iop.org/0953-8984/2/3/013
Related URL: http://dx.doi.org/10.1088/0953-8984/2/3/013
Abstract
The first measurement is reported for the electrical properties of the precursor glasses in the high-temperature superconducting system Bi-Sr-Ca-Cu-O. The phonon-assisted hopping of small polarons is consistent with the DC conductivity in the high temperature region; however, at lower temperatures a variable range hopping mechanism dominates the conductivity. The correlated barrier hopping model is consistent with the temperature and frequency dependence of the AC conductivity and its frequency exponent.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics Publishing. |
| ID Code: | 11467 |
| Deposited On: | 16 Nov 2010 13:55 |
| Last Modified: | 28 May 2011 04:56 |
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