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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/942

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dc.contributor.authorPandya, Dinesh K-
dc.contributor.authorKashyap, Subhash C-
dc.contributor.authorPattanaik, Gyana R-
dc.identifier.citationJournal of Alloys and Compounds, 326(1-2), 255-259en
dc.description.abstractWe have been able to prepare ultrafine powders of pure and doped La Ca MnO (LCMO) at a relatively lower temperature of 5508C using a simple, cost effective and versatile PVA-based chemical route. A maximum magnetoresistance (MR) ratio of -25% is obtained at 20 K in a magnetic field of 3 kOe. Magnetoresistive behaviour being retained in the nanopowders may have implications for enhancing data storage capacity. The semicondutor-to-metal transition temperature, Tg however, shifts towards the lower temperature as p the particle size is reduced. To improve T and near-room-temperature MR additives like NH NO and citric acid have been used. In addition, Pb is substituted for Ca.en
dc.format.extent397542 bytes-
dc.subjectChemical routeen
dc.titleMagnetoresistive behaviour of La0.67(Ca0.33-xpbx) MnO3 nanopowders prepared at lower temperatureen
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