Explanation of Meyer–Neldel rule in the thermally activated a.c. conduction in some chalcogenide glasses using correlated barrier hopping model
- 141 Downloads
We have investigated Meyer–Neldel rule in thermally activated a.c. conduction for a-Se80Te20 and a-Se80Te10M10 (M = Cd, In, Sb) alloys by two different approaches. In the first case, the temperature dependence of a.c. conductivity is studied at different audio frequencies without changing the composition of glassy system. In the second case, the composition itself varies at a particular audio frequency. The results are explained by using well-known correlated barrier hopping model.
KeywordsChalcogenide Glass Glassy Alloy Glassy System Audio Frequency Correlate Barrier
We are thankful to the Council of Scientific & Industrial Research (CSIR) for providing financial assistance under major research project [Scheme Number: (03(1177)/10]. We are also thankful to Prof. Ashok Kumar, Physics Department, HBTI, Kanpur, India for his help in a.c. conductivity measurements.
- 1.Mott NF, Davis EA (1979) Electronic processes in non-crystalline materials. Clarendon Press, OxfordGoogle Scholar
- 3.Fisher DJ (ed) (2001) Defects and diffusion forum, vol 192–193. Scitech Publication, ZurichGoogle Scholar
- 4.Mehta N, Kumar D, Kumar A (2006) Indian J Pure Appl Phys 44:935Google Scholar
- 13.Borisova ZU (1981) Glassy semiconductors. Plenum, New YorkGoogle Scholar