Transport mechanism in nonconventional bismuth cuprate glass

Hazra, S. ; Mandal, S. ; Ghosh, A. (1996) Transport mechanism in nonconventional bismuth cuprate glass The Journal of Chemical Physics, 104 (24). 10041_1-10041_5. ISSN 0021-9606

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Temperature and compositional dependence of the electrical transport properties of the nonconventional binary bismuth cuprate glasses are reported for the first time. It has been observed that the phonon assisted small polaron hopping model in the nonadiabatic regime is consistent with the data only at high temperatures. The variable range hopping model can fit the low temperature data qualitatively. The polaron hopping models proposed by Schnakenberg [Phys. Status Solidi 28, 623 (1968)] and Emin [Phys. Rev. Lett. 32, 303 (1974)] can predict quantitatively the conductivity data in the entire temperature range of measurement for all glass compositions. The physical parameters obtained from the best fits of these models are found reasonable and consistent with the glass compositions.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
Keywords:Hopping; Glass; Bismuth Compounds; Cuprates; Electric Conductivity; Temperature Dependence; Chemical Composition; Polarons
ID Code:72859
Deposited On:29 Nov 2011 12:52
Last Modified:18 May 2016 17:56

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