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Structural changes and related effects due to charge ordering in Nd0.5Ca0.5MnO3

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dc.contributor.author Vogt, T
dc.contributor.author Cheetham, A K
dc.contributor.author Mahendiran, R
dc.contributor.author Raychaudhuri, A K
dc.contributor.author Mahesh, R
dc.contributor.author Rao, C N R
dc.date.accessioned 2012-11-29T10:12:04Z
dc.date.available 2012-11-29T10:12:04Z
dc.date.issued 1996-12-01
dc.identifier 0163-1829 en_US
dc.identifier.citation Physical Review B 54(21), 15303-15306 (1996) en_US
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/1112
dc.description Restricted Access en_US
dc.description.abstract Charge ordering in L(1-x)A(x)MnO(3) (L=rare earth, A=Ca,Sr) depends strongly on the width of the e(g) band or on the average radius of the A-site cations, 〈rA〉. Investigations of Nd0.5Ca0.5MnO3 with a small 〈rA〉 show evidence for a first -order transition due to charge ordering around 220 K, accompanied by a large decrease in volume (0.45%). Structural data at different temperatures indicate that the distortions within the structure are a direct result of charge ordering. Valence sum calculations show the presence of two differently charged Mn atoms. Electron transport and magnetic susceptibility measurements have been carried out down to low temperatures to understand the nature of the charge-ordered state. The charge-ordered state melts on the application of a magnetic field. en_US
dc.description.uri http://dx.doi.org/10.1103/PhysRevB.54.15303 en_US
dc.language.iso en en_US
dc.publisher American Physical Society en_US
dc.rights © 1996 The American Physical Society en_US
dc.subject Insulator-Metal Transition en_US
dc.subject Giant Magnetoresistance en_US
dc.subject Magnetic-Field en_US
dc.title Structural changes and related effects due to charge ordering in Nd0.5Ca0.5MnO3 en_US
dc.type Article en_US


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