Abstract
The specific crystallographic features of M 1/4TiS 2 (M=Ni, Fe) lead us to carry out UHV-Scanning Tunneling Microscopy studies, in order to bring the different atoms chemical environment of the structure and the host–guest interactions to light. We imaged the top sulfur planes (001) for both compounds and proposed an explanation to the two well differentiated contrast observed and a surface structural arrangement. S2p XPS core spectra were recorded to highlight the different chemical surrounding for chalcogen atoms and their differentiation depending of the compound considered (Ni or Fe 1/4TiS 2).
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