Universal behavior of giant electroresistance in epitaxial La0.67Ca0.33MnO3 thin films

Details Universal behavior of giant electroresistance in epitaxial La0.67Ca0.33MnO3 thin films Universal behavior of giant electroresistance in epitaxial La0.67Ca0.33MnO3 thin films

2004-07-28

arxiv.org/abs/cond-mat/0407719v2

Appl. Phys. Lett. 86, 122502 (2005)

Physics

Condensed Matter

Materials Science

13 pages, 4 figures

Scientific paper

10.1063/1.1889241

We report a giant resistance drop induced by dc electrical currents in La0.67Ca0.33MnO3 epitaxial thin films. Resistance of the patterned thin films decreases exponentially with increasing current and a maximum drop shows at the temperature of resistance peak Tp. Variation of resistance with current densities can be scaled below and above Tp, respectively. This work can be useful for the future applications of electroresistance.

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