Münster 1999 – wissenschaftliches Programm
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O: Oberflächenphysik
O 11: Poster (I)
O 11.46: Poster
Montag, 22. März 1999, 19:30–22:30, Aula
In situ intercalation of the layered compound TiSe2 with rare earth’s — •Steffen Danzenbächer1, Serguei Molodtsov1, Ralph Seidel1, Manuel Richter2, and Clemens Laubschat1 — 1TU Dresden, FR Physik, Institut für Oberflächenphysik und Mikrostrukturphysik, 01062 Dresden — 2TU Dresden, FR Physik, Institut für Theoretische Physik, 01062 Dresden
Layered transition metal dichalcogenides provide a possibility to intercalate guest atoms between sheets of chalcogenides. We report an angle-resolved photoelectron spectroscopy study of the valence band electronic structure of the layered compound TiSe2 as well as for in situ intercalated TiSe2 with rare earth elements (RE’s). Experimental results are compared with LDA-LCAO band-structure calculations. The experimental data show clearly that the character of the valence band changes from 3D to 2D upon intercaltion. This behavior, however, is only in a fair agreement with the results of the band structure calculations.