Misfit cobalt oxides

Limelette, P., Hebert, S., Hardy, V., Fresard, R., Simon, Ch., Maignan, A. (2006). Scaling behavior in thermoelectric misfit cobalt oxides. Physical Review Letters, 97, 046601. 

One of the major issues in these materials is also the role played by the separating layer of randomly filled Na. The origin of the magnetic correlations and the paramagnetic susceptibility have been ascribed to the electrostatic potential associated with the Na layer.Also, the Na layer, when disordered, could be efficient to reduce the thermal conductivity. It is therefore very important to be able to investigate other families of layered cobaltates, with the same Cdl2 layer, but different block layer. This can be done by investigating the misfit oxide family. 

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