Magnetic field resulting from nonlinear electrical transport in single crystals of charge-ordered $Pr_{0.63}Ca_{0.37}MnO_3$

Guha, Ayan and Khare, N and Raychaudhuri, AK and Rao, CNR (2000) Magnetic field resulting from nonlinear electrical transport in single crystals of charge-ordered $Pr_{0.63}Ca_{0.37}MnO_3$. In: Physical Review B, 62 (18). R11941-R11944.

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Abstract

In this paper we report that the current induced destabilization of the charge ordered (CO) state in a rare-earth manganite gives rise to regions with ferromagnetic correlation. We did this experiment by measuring the I-V characteristics in single crystal of the CO system $Pr_{0.63}Ca_{0.37}MnO_3$ and simultaneously measuring the magnetization of the current carrying conductor using a high $T_c$ superconducting quantum interference device working at T577 K. We have found that the current induced destabilization of the CO state leads to a regime of negative differential resistance which leads to a small enhancement of the magnetization of the sample, indicating ferromagnetically aligned moments.

Item Type:	Journal Article
Publication:	Physical Review B
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	30 Aug 2006
Last Modified:	19 Sep 2010 04:30
URI:	http://eprints.iisc.ac.in/id/eprint/8092

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