A.C. Conductivity of Ag Incorporated Se-Te-Bi Glassy Alloy
| Authors | Anup Kumar1,2, Pawan Heera1, Raman Sharma1 |
| Affiliations | 1 Department of Physics, Himachal Pradesh University, Shimla-5, India 2 Physics Department, P. G. Govt. Degree College, Kullu, H. P., India |
| Е-mail | kumar.anup.sml@gmail.com, sramanb70@mailcity.com |
| Issue | Volume 5, Year 2013, Number 2 |
| Dates | Received 15 February 2013; published online 04 May 2013 |
| Citation | Anup Kumar, Pawan Heera, Raman Sharma, J. Nano- Electron. Phys. 5 No 2, 02020 (2013) |
| DOI | |
| PACS Number(s) | 61.43Dq, 81.05Gc, 81.05Kf |
| Keywords | A (1225) , C (1211) , conductivity (43) , Chalcogenide glasses (3) , Activation energy (7) , Frequency exponent. |
| Annotation | Effect of Ag addition on the a.c. conductivity as a function of frequency in Se80.5Bi1.5Te18 – yAgy (y 1.0, 1.5 and 2.0 at. %) glassy alloy has been investigated in the temperature range 300-355 K. The electrical conductivity is measured as a function of frequency () of an alternating electric field in the frequency range 1 -500 kHz, using Wayne Kerr 6500 B Impedance Analyzer. A.C. conductivity (ω) is found to increases with an increase in frequency for the entire range of temperature in all compositions. The frequency exponent s is found to decrease with an increase in temperature which indicates that the correlated barrier hopping is the possible conduction mechanism in the investigated samples. |
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