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Title: Nonlinear electrical conduction and broad band noise in the charge-ordered rare earth manganate Nd0.5Ca0.5MnO3
Authors: Guha, Ayan
Ghosh, Arindam
Raychaudhuri, A K
Parashar, S
Raju, A R
Rao, C N R
Keywords: Insulator-Metal Transition
Issue Date: 22-Nov-1999
Publisher: American Institute of Physics
Citation: Applied Physics Letters 75(21), 3381-3383 (1999)
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 --> T-CO, the charge-ordering temperature. This observation suggests that the charge-ordered state gets depinned at the onset of the nonlinear conduction. (C) 1999 American Institute of Physics. [S0003-6951(99)05247-X].
Other Identifiers: 0003-6951
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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