Enhanced colossal electroresistance in Cu/Pr0.7Ca0.3MnO3/Cu structure

Voltage-current (V-I) curves have been measured in symmetrical metal/Pr0.7Ca0.3MnO3/metal structures with metal=Ag, Cu, Pt, and Au. Our four measured samples exhibit room-temperature nonlinear and asymmetric V-I curves with electrical hysteresis loops. Among these four samples, Cu/Pr0.7Ca0.3MnO3/Cu...

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Bibliographic Details
Published in:Journal of applied physics 2006-11, Vol.100 (9)
Main Authors: Peng, W. C., Lin, J. G., Wu, J. H.
Format: Article
Language:English
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Summary:Voltage-current (V-I) curves have been measured in symmetrical metal/Pr0.7Ca0.3MnO3/metal structures with metal=Ag, Cu, Pt, and Au. Our four measured samples exhibit room-temperature nonlinear and asymmetric V-I curves with electrical hysteresis loops. Among these four samples, Cu/Pr0.7Ca0.3MnO3/Cu produces the largest hysteresis loop, yielding an enhanced colossal electroresistance of 2279% at a current of 0.5 A.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.2361087