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Electric Field Induced Collapse of Charge-Ordered Phase in Manganites

S. Dong·C. Zhu·Y. Wang·F. Yuan·K. F. Wang·J. -M. Liu
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Abstract

The colossal electroresistance in manganites is a concomitant of the electric field induced insulator-to-metal phase transition. A phenomenological phase transition model is proposed to study this electric field induced collapse of charge-ordered phase. The hysteresis of the phase transition is well explained using the effective medium approximation. The volume fraction of metallic region at the metal-to-insulator transition point is estimated as 30%. In addition, it is found that the critical electric field to melt the charge-ordered phase will decrease with the applied magnetic field.

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S. Dong, C. Zhu, Y. Wang, F. Yuan, K. F. Wang, J. -M. Liu. 2006-12-06. Electric Field Induced Collapse of Charge-Ordered Phase in Manganites. https://doi.org/10.1088/0953-8984%2F19%2F26%2F266202

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