Studies on the spin-state equilibria of cobalt ions in the system La1-x Na x Co1-x Nb x O3 (x≤0·40)

Parkash, O.; Chaturvedi, N.; Tiwari, M.; Kumar, D.

Studies on the spin-state equilibria of cobalt ions in the system La1-x Na x Co1-x Nb x O3 (x≤0·40)

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Studies-on-the-spinstate-equilibria-of-cobalt-ions-in-the-system-Lasub1xsub-Nasub-xsub-Cosub1xsub-Nbsub-xsub-Osub3sub-x040Bulletin-of-Materials-Science.pdf (199.82 KB)

Date

1989-03

Authors

Publisher

Springer India

Abstract

The spin-state equilibria of cobalt ions in the system La1-x Na x Co1-x Nb x O3 (x≤0·40) has been studied by measuring its magnetic susceptibility as a function of temperature in the range 300-600 K. It is found that the behaviour of the samples with x≤0·10 is similar to that of LaCoO3, while compositions with x≥0·20 behave quite differently, exhibiting simple paramagnetic behaviour.