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dc.contributor.authorBiswas, A-
dc.contributor.authorRaychaudhuri, A K-
dc.contributor.authorArulraj, A-
dc.contributor.authorRao, C N R-
dc.identifier.citationApplied Physics A-Materials Science & Processing 66, S1213-S1216 (1998)en_US
dc.descriptionProceedings Paper. Restricted Access.en_US
dc.description.abstractWe report here the results of vacuum tunneling spectroscopy of race-earth manganates which show colossal magnetoresistance (CMR) and charge ordering (CO). Three samples with different hole concentrations and average A site cation radii have been studied. A charge-ordering gap (Delta(CO)) opens up in the density of states (DOS) near EF, below the charge-ordering transition. A gap comparable to the transport gap opens up in the paramagnetic state also. There is an absence of gap only in the ferromagnetic metallic state. We have measured the temperature dependence of these quantities.en_US
dc.publisherSpringer Verlagen_US
dc.rights© 1998 Springer Verlagen_US
dc.subjectGiant Magnetoresistanceen_US
dc.subjectDoped Lamno3en_US
dc.titleTemperature-dependent vacuum tunneling spectroscopy of rare-earth manganates showing colossalmagnetoresistance and charge orderingen_US
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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