Magnetic resonance and electronic spectroscopy of M2P2S6 intercalation compounds
The transition metal chalcogeno-phosphates, M2P2X6 (M=Mn, Cd, Zn, Fe; X=S, Se) belong to a family of broad-band semiconductors with two dimensional, layered crystal structures. The basic structural repeat unit of these compounds is a sandwich of three covalently bonded atomic layers: a central layer of metal atoms and P-P pairs (in a ratio 2:1), between two layers of chalcogen atoms. These units are held together by weak van der Waals (VDW) bonds to form at the lamellar crystal lattice. The stacking arrangement produces a monoclinic or trigonal lattice at ambient temperature. Under appropriate conditions guest molecules can diffuse into the VDW region causing changes in the structural and physical properties of the host materials.
KeywordsHost Lattice Intercalation Compound Chalcogen Atom Layered Crystal Structure Intercalate Layer
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- 4.D. Cleary, J. Groh, E. Lifshitz, A. H. Francis (J. Phys. Chem., to be published).Google Scholar