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Magneto-transport studies on (Pr1/3Sm2/3)(2/3)A(1/3)MnO(3) (A = Ca, Sr and Ba) compounds

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Title Magneto-transport studies on (Pr1/3Sm2/3)(2/3)A(1/3)MnO(3) (A = Ca, Sr and Ba) compounds
 
Creator ASTHANA, S
BAHADUR, D
NIGAM, AK
MALIK, SK
 
Subject transport-properties
colossal magnetoresistance
cation disorder
double exchange
manganites
la0.7ca0.3mno3
resistivity
perovskites
films
 
Description The magnetic and transport properties of (Pr1/3Sm2/3)(2/3)A(1/3)MnO(3) (A = Ca, Sr and Ba) compounds, prepared by the citrate-gel route, have been investigated. These compounds are found to crystallize in the orthorhombic structure. Charge ordering transport behaviour is indicated only in the Ca-substituted compound. The Sr- and Ba-substituted compounds show a metal-insulator transition and semiconducting-like behaviour, respectively. The magnetoresistance is highest in the Ba-substituted compound. All three samples show irreversibility in magnetization as a function of temperature in zero-field cooled (ZFC) and field cooled (FC) plots. Non-saturating magnetization, even at 5 K and 4 T field, is observed in Ca- as well Ba-substituted compounds.
 
Publisher IOP PUBLISHING LTD
 
Date 2011-08-03T21:08:17Z
2011-12-26T12:54:24Z
2011-12-27T05:42:16Z
2011-08-03T21:08:17Z
2011-12-26T12:54:24Z
2011-12-27T05:42:16Z
2004
 
Type Article
 
Identifier JOURNAL OF PHYSICS-CONDENSED MATTER, 16(29), 5297-5307
0953-8984
http://dx.doi.org/10.1088/0953-8984/16/29/020
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9146
http://hdl.handle.net/10054/9146
 
Language en