Guha, Ayan ; Ghosh, Arindam ; Raychaudhuri, A. K. ; Parashar, S. ; Raju, A. R. ; Rao, C. N. R. (1999) Nonlinear electrical conduction and broad band noise in the charge-ordered rare earth manganate Nd0.5Ca0.5MnO3 Applied Physics Letters, 75 (21). pp. 3381-3383. ISSN 0003-6951
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Official URL: http://apl.aip.org/resource/1/applab/v75/i21/p3381...
Related URL: http://dx.doi.org/10.1063/1.125358
Abstract
Measurements of the dc transport properties and the low-frequency conductivity noise in films of charge-ordered Nd0.5Ca0.5MnO3 grown on Si substrate reveal the existence of a threshold field in the charge-ordered regime beyond which strong nonlinear conduction sets in along with a large broad band conductivity noise. Threshold-dependent conduction disappears as T→TCO, the charge-ordering temperature. This observation suggests that the charge-ordered state gets depinned at the onset of the nonlinear conduction.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Neodymium Compounds; Calcium Compounds; Insulating Thin Films; Electrical Conductivity; Charge-ordered States; Random Noise |
| ID Code: | 43448 |
| Deposited On: | 11 Jun 2011 13:07 |
| Last Modified: | 05 Jul 2012 04:02 |
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