H. Martinez et al., Electronic structure of two misfit layer compounds: (PbS)(1.18)(TiS2) and (PbS)(1.18)(TiS2)(2), J ELEC SPEC, 95(2-3), 1998, pp. 145-158
Citations number
26
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
The results of a systematic study on two misfit layer compounds: (PbS)(1.18
)(TiS2) and (PbS)(1.18)(TiS2)(2) by X-ray Photoelectron Spectroscopy are re
ported. The core levels and the valence band spectra have been analysed and
compared with the non-intergrowth samples (PbS) and (TiS2). In order to sh
ed light on the stabilization of misfit layer compounds, we performed a com
parison between theoretical (EHT-TB method) and experimental results on the
mono-layer misfit compound. The chemical shifts or/and the broadenning of
the core level peaks have been discussed in terms of initial and final stat
es, the former based on the possible charge transfer between PbS and TiS2.
We have shown how the XPS valence band is modified by the PbS-TiS2 interact
ions by using calculated densities of states. (C) 1998 Elsevier Science B.V
. All rights reserved.