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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/9146

Title: Magneto-transport studies on (Pr1/3Sm2/3)(2/3)A(1/3)MnO(3) (A = Ca, Sr and Ba) compounds
Authors: ASTHANA, S
BAHADUR, D
NIGAM, AK
MALIK, SK
Keywords: transport-properties
colossal magnetoresistance
cation disorder
double exchange
manganites
la0.7ca0.3mno3
resistivity
perovskites
films
Issue Date: 2004
Publisher: IOP PUBLISHING LTD
Citation: JOURNAL OF PHYSICS-CONDENSED MATTER, 16(29), 5297-5307
Abstract: 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.
URI: 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
ISSN: 0953-8984
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