Transport and magnetic properties of La(1-x)Ba(x)CoO(3)

Mandal, P
Choudhury, Pranab
Biswas, S K
Ghosh, B

Publication date

September 2004

Publisher

American Physical Society (APS)

Abstract

We have systematically investigated transport, magnetic, and structural properties of La(1-x)Ba(x)CoO(3) in the range of doping 0<xless than or equal to0.55. In this system, the metal-insulator transition is observed to be coincident with the onset of ferromagnetic (FM) ordering at x=0.20. Well below Curie temperature T(C), rho exhibits T(2) behavior whereas over a temperature interval just below T(C), it shows T(4) dependence due to the scattering of charge carriers by magnetic fluctuations. For x<0.20, the low temperature magnetic property is dominated by a spin-glass- or cluster-glasslike phase. The role of ionic size mismatch on the above mentioned physical properties has also been investigated by partially substituting La with Nd and B...

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Transport and magnetic properties of La(1-x)Ba(x)CoO(3)

Abstract

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Transport and magnetic properties of La(1-x)Ba(x)CoO(3)

Abstract

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