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Paper detail

The electrical current effect in phase separated La5/8-yPryCa3/8MnO3: Charge order melting vs. Joule heating

We have studied the effect of electric field on transport properties of the prototypical phase separated manganite La5/8-yPryCa3/8MnO3 with y=0.34. Our results show that the suggested image in which the charge ordered state is melted by the appliance of an electric current and/or voltage has to be revised. We were able to explain the observed resistivity drop in terms of an artifact related to Joule heating and the particular hysteresis that the system under study display, common to many other phase separated manganites.

preprint2005arXivOpen access
J. SacanellA. G. LeyvaP. Levy
cond-mat.str-elcond-mat.mtrl-sci
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J. SacanellA. G. LeyvaP. Levy

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