dc.contributor.author |
Vanitha, P V
|
|
dc.contributor.author |
Santhosh, P N
|
|
dc.contributor.author |
Singh, R S
|
|
dc.contributor.author |
Rao, C N R
|
|
dc.contributor.author |
Attfield, J P
|
|
dc.date.accessioned |
2012-03-21T09:40:51Z |
|
dc.date.available |
2012-03-21T09:40:51Z |
|
dc.date.issued |
1999-06-01 |
|
dc.identifier |
0163-1829 |
en_US |
dc.identifier.citation |
Physical Review B 59(21), 13539-13541 (1999) |
en_US |
dc.identifier.uri |
https://libjncir.jncasr.ac.in/xmlui/10572/723 |
|
dc.description.abstract |
The effect of disorder arising from the mismatch between the average sizes of the A-site cations in the rare-earth manganates, L(0.5)A(0.5)MnO(3) (L = rare earth, A = alkaline earth), on their charge-ordering behavior has been investigated. Measurements on two series of manganates with a fixed average cation radius, < r(A)>, of 1.17 and 1.24 Angstrom, reveal that the charge-ordering transition temperature, T-CO, is not very sensitive to the size mismatch unlike ferromagnetic T-C or metal-insulator transition data. Furthermore, T-CO is not affected greatly by the orthorhombic lattice distortion. The observed decrease in T-CO with increase in < r(A)> is consistent with a quadratic dependence upon (r(A)(0) - < r(A)>) where r(A)(0) = 1.13 Angstrom. |
en_US |
dc.description.uri |
http://dx.doi.org/10.1103/PhysRevB.59.13539 |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
American Physical Society |
en_US |
dc.rights |
© 1999 The American Physical Society |
en_US |
dc.subject |
Manganese Oxide Perovskites |
en_US |
dc.subject |
A-Site Cations |
en_US |
dc.subject |
Giant Magnetoresistance |
en_US |
dc.title |
Effect of the cation size disorder on charge ordering in rare-earth manganates |
en_US |
dc.type |
Article |
en_US |