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Published on: March 29, 2019
Nanoblock coupling effect in iodine intercalated [Bi(0.82)CaO(2)](2)[CoO(2)](1.69) layered cobaltite
E Guilmeau1, M Pollet, D Grebille
1CRISMAT-ENSICAEN Laboratory, UMR CNRS 6508, 6 Bd. Maréchal Juin, 14050 Caen Cedex, France. emmanuel.guilmeau@ensicaen.fr
Abstract:
We report on the structural, microstructural, and electronic properties of iodine intercalated [Bi0.82CaO2]2[CoO2]1.69 misfit cobaltite. We first prove through a detailed and careful structural study that the block layer structure can be modified in the desired way. Iodine enters the material between the [BiO] double layers, and the c-cell parameter of the pristine compound is elongated by 3.6 Angstrom. On the basis of this result, we point out the coupling between the block-layer structure and the transport properties. Additionally, we provide in-depth commentary and discussion of some extra results, clarifying some doping effects in the quasi-2D studied phase. Finally, we also propose some expressions that might be useful to material scientists for the tuning of the properties of such compounds.
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