Rajarajan, A. K. ; Yusuf, S. M. ; Balaya, P. ; Kulkarni, R. G. (2002) ac Conductivity of mixed spinel NiAl0.7Cr0.7Fe0.6O4 Pramana, 58 (5-6). pp. 787-789. ISSN 0304-4289
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Official URL: http://www.ias.ac.in/describe/article/pram/058/05-...
Related URL: http://dx.doi.org/10.1007/s12043-002-0172-7
Abstract
ac Conductivity measurements are carried out across the metal to insulator transition in NiAl0.7Cr0.7Fe0.6O4. The low frequency data is analyzed using Summerfield scaling theory for hopping conductivity. The exponent of the scaling behavior has significantly different values in the conducting and insulating regimes. The hopping frequency and the zero frequency conductivity are found to increase with temperature, slowly in the metallic regime and rapidly in the insulating regime.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| ID Code: | 112388 |
| Deposited On: | 01 Dec 2017 11:51 |
| Last Modified: | 01 Dec 2017 11:51 |
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