Shekhar, S. ; Prasad, V. ; Subramanyam, S. V. (2007) Quantum interference effect in strongly localized system of polymer-nanocomposites Physics Letters A, 37 (5-6). pp. 486-489. ISSN 0375-9601
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.physleta.2007.06.060
Abstract
A positive magnetoresistance (MR) is observed in the composites of magnetic nanoparticles and polymer at low temperatures. The MR decreases gradually as temperature increases and becomes negative passing through a crossover temperature regime. The MR attains minimum at 40 K and increases above this temperature. The transport and magnetotransport properties at low temperatures follow Efros-Shklovskii variable range hopping. The negative magnetoresistance has been explained by the quantum interference effect in strongly localized regime.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Nanocomposites; Negative Magnetoresistance; Variable Range Hopping |
| ID Code: | 51536 |
| Deposited On: | 28 Jul 2011 14:42 |
| Last Modified: | 28 Jul 2011 14:42 |
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