dc.contributor.author |
Vanitha, P V
|
|
dc.contributor.author |
Arulraj, Anthony
|
|
dc.contributor.author |
Raju, A R
|
|
dc.contributor.author |
Rao, C N R
|
|
dc.date.accessioned |
2012-11-23T11:34:59Z |
|
dc.date.available |
2012-11-23T11:34:59Z |
|
dc.date.issued |
1999-11 |
|
dc.identifier |
1387-1609 |
en_US |
dc.identifier.citation |
Comptes Rendus De L Academie Des Sciences Series IIC Fascicule C-Chimie 2(11-13), 595-601 (1999 ) |
en_US |
dc.identifier.uri |
https://libjncir.jncasr.ac.in/xmlui/10572/1066 |
|
dc.description |
Restricted Access |
en_US |
dc.description.abstract |
Substitution of Ti and Zr in the B-site of La0.7Ca0.3MnO3 lowers the TC and the temperature of insulator—metal transition. Substitution of Ru in the B-site of La0.7Ca0.3MnO3, however, does not alter the TC or TIM significantly. More importantly, the effect of substitution of Ti and Zr in the B-site of the charge-ordered Nd0.5Ca0.5MnO3 progressively destroys the charge-ordering in this insulating material. In contrast, substitution by Ru in the B-site renders the material ferromagnetic with the TC increasing with the Ru content and the material also shows insulator-metal transition. This marked effect of Ru substitution on the charge-ordering is also seen in Nd0.5Sr0.5MnO3 where the TC increases with Ru content while charge-ordering gets destroyed. The extraordinary effect of Ru in favouring the ferromagnetic metallic state and destroying the charge-ordering is attributed mainly to its unique electronic configuration (t2g4eg0). (C) 1999 Academie des sciences / Editions scientifiques et medicales Elsevier SAS. |
en_US |
dc.description.uri |
http://dx.doi.org/10.1016/S1387-1609(00)88571-0 |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Editions Scientifiques Medicales Elsevier |
en_US |
dc.rights |
© 1999 Academic Des Sciences / Editions Scientifiques Medicales Elsevier SAS |
en_US |
dc.subject |
rare earth manganates |
en_US |
dc.subject |
colossal magnetoresistivity |
en_US |
dc.subject |
charge ordering |
en_US |
dc.subject |
ruthenium in manganates |
en_US |
dc.subject |
Colossal Magnetoresistance |
en_US |
dc.subject |
Internal-Pressure |
en_US |
dc.subject |
Cations |
en_US |
dc.subject |
Transition |
en_US |
dc.subject |
Transport |
en_US |
dc.subject |
Fe |
en_US |
dc.subject |
Perovskites |
en_US |
dc.subject |
Manganites |
en_US |
dc.subject |
Magnetism |
en_US |
dc.subject |
Oxides |
en_US |
dc.title |
Effect of substituting Ru4+ and other tetravalent ions in the B-site of rare earth manganates on the magneto-transport properties and charge-ordering |
en_US |
dc.type |
Article |
en_US |