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Effect Of Substitution Of Mn3+ By Other Trivalent Cations On The Colossal Magnetoresistance And Related Properties Of The Manganates: La(0.7)A(0.3)Mn(1-X)M(X)O(3) (A = Ca, Sr, Pb; M = Al, Cr, Fe, Co)

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dc.contributor.author Sugantha, M
dc.contributor.author Singh, R S
dc.contributor.author Guha, A
dc.contributor.author Raychaudhuri, A K
dc.contributor.author Rao, C N R
dc.date.accessioned 2012-11-27T11:30:53Z
dc.date.available 2012-11-27T11:30:53Z
dc.date.issued 1998-07
dc.identifier 0025-5408 en_US
dc.identifier.citation Materials Research Bulletin 33(7),1129–1134 (1998) en_US
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/1108
dc.description ERRATA-Correction. Restricted Access en_US
dc.description.abstract Investigations of the manganates of the general formula La(0.7)A(0.3)Mn(1-x)M(x)O(3) with A = Ca, Sr, or Pb and M = Al, Cr, Fe, or Co in the x range 0.00-0.20 have shown that the ferromagnetic Tc and the insulator-metal transition temperature, Tp, generally decrease with increase in x, accompanied by an increase in the resistivity at Tp The value of the saturation magnetization and, hence, the saturation moment also decrease with increase in x. The magnitude of magnetoresistance is generally smaller in the Fe and Co substituted systems when A = Pb. However, with A Sr, we find enhanced colossal magnetoresistance in the 50-250 K range when x = 0.1 for M Fe and Co. Interestingly, these systems exhibit a nearly flat resistivity curve over this temperature range. (C) 1998 Elsevier Science Ltd. en_US
dc.description.uri http://dx.doi.org/10.1016/S0025-5408(98)00075-0 en_US
dc.language.iso en en_US
dc.publisher Pergamon Elsevier Science Ltd en_US
dc.rights ©1998 Elsevier Science Ltd en_US
dc.subject oxides en_US
dc.subject X-ray diffraction en_US
dc.subject electrical properties en_US
dc.subject magnetic properties en_US
dc.subject Giant Magnetoresistance en_US
dc.title Effect Of Substitution Of Mn3+ By Other Trivalent Cations On The Colossal Magnetoresistance And Related Properties Of The Manganates: La(0.7)A(0.3)Mn(1-X)M(X)O(3) (A = Ca, Sr, Pb; M = Al, Cr, Fe, Co) en_US
dc.type Article en_US


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