Effect of particle size on the giant magnetoresistance of La0.7Ca0.3MnO3

Mahesh, R; Mahendiran, R; Raychaudhuri, A K; Rao, C N R

dc.contributor.author	Mahesh, R
dc.contributor.author	Mahendiran, R
dc.contributor.author	Raychaudhuri, A K
dc.contributor.author	Rao, C N R
dc.date.accessioned	2012-10-31T06:45:32Z
dc.date.available	2012-10-31T06:45:32Z
dc.date.issued	1996
dc.identifier	0003-6951	en_US
dc.identifier.citation	Applied Physics Letters 68(16), 2291-2293 (1996)	en_US
dc.identifier.uri	https://libjncir.jncasr.ac.in/xmlui/10572/886
dc.description	Restricted Access	en_US
dc.description.abstract	Effect of particle size on the electron transport and magnetic properties of La0.7Ca0.3MnO3 has been investigated. While the ferromagnetic Tc, low field magnetic susceptibility, and insulator-metal transition are markedly affected by the particle size, the maximum magnetoresistance exhibited by the samples near Tc is not sensitive to the particle size. However, the magnetoresistance at 4.2 K increases with decrease in particle size, suggesting a substantial contribution by the grain boundaries. Preliminary measurements on La0.7Sr0.3MnO3 samples of different particle sizes also corroborate the above conclusions. (C) 1996 American Institute of Physics.	en_US
dc.description.uri	http://dx.doi.org/10.1063/1.116167	en_US
dc.language.iso	en	en_US
dc.publisher	American Institute of Physics	en_US
dc.rights	© 1996 American Institute of Physics	en_US
dc.subject	Lanthanum Compounds	en_US
dc.subject	Calcium Compounds	en_US
dc.subject	Manganese Oxides	en_US
dc.subject	Magnetoresistance	en_US
dc.subject	Ferromagnetism	en_US
dc.subject	Size Effect	en_US
dc.subject	Metal−Insulator Transformations	en_US
dc.subject	Temperature Dependence	en_US
dc.title	Effect of particle size on the giant magnetoresistance of La0.7Ca0.3MnO3	en_US
dc.type	Article	en_US