Influence of local structure on magnetic properties of layered cobaltites PrBaCo(2)O(5+delta), delta greater than 0.5

Ganorkar, S.; Priolkar, K.R.; Sarode, P.R.; Banerjee, A.; Rawat, R.; Emura, S.

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Influence of local structure on magnetic properties of layered cobaltites PrBaCo(2)O(5+delta), delta greater than 0.5

Ganorkar, S.; Priolkar, K.R.; Sarode, P.R.; Banerjee, A.; Rawat, R.; Emura, S.

Source : Journal of Physics-Condensed Matter. 24(47); 2012; Article ID: 476003.

URI: http://dx.doi.org/10.1088/0953-8984/24/47/476003
http://irgu.unigoa.ac.in/drs/handle/unigoa/2822

Date: 2012

Document Type: Journal article

Abstract:

The effect of local structure on the magnetic and transport properties of the layered perovskites has been investigated. The samples PrBaCo(2)O(5+delta), (delta = 0.80 and 0.67) crystallize in the same 112 type tetragonal structure but have different magnetic ground states. Extended x-ray absorption fine structure (EXAFS) spectroscopy has been employed to explain the changes in magnetic interactions based on the rotation and tilting of CoO polyhedra in these oxygen-rich double perovskites.

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