ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Colossal electroresistance and current induced switching in ferromagnetic insulating state of $La_{0.82}Ca_{0.18}MnO_3$

Jain, Himanshu and Raychaudhuri, AK (2006) Colossal electroresistance and current induced switching in ferromagnetic insulating state of $La_{0.82}Ca_{0.18}MnO_3$. In: Applied Physics Letters, 89 (15). 152116-1-3.

[img] PDF
Colossal_electroresistance.pdf
Restricted to Registered users only

Download (85Kb) | Request a copy

Abstract

Colossal electroresistance and current induced resistivity switching have been measured in the ferromagnetic insulating FMI state of single crystal manganite $La_{0.82}Ca_{0.18}MnO_3$. The sample has a Curie transition temperature $T_C=165 K$ and the FMI state is realized for temperatures T< 100 K. The electroresistance ER, arising from a strong nonlinear resistivity, attains a large value \approx 100% in the FMI state. However, this is accompanied by a collapse of the magnetoresistance MR to a small value even in magnetic field (H) of 10 T. This demonstrates that the mechanisms that give rise to ER and MR are effectively decoupled.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Institute of Physics.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 23 Nov 2006
Last Modified: 19 Sep 2010 04:32
URI: http://eprints.iisc.ernet.in/id/eprint/8942

Actions (login required)

View Item View Item