Berlin 2005 – wissenschaftliches Programm

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TT: Tiefe Temperaturen

TT 16: Posters Correlated Electrons, Measuring Devices, Cryotechnique

TT 16.26: Poster

Samstag, 5. März 2005, 11:00–16:30, Poster TU C

Density of states of the three dimensional Bernoulli-Anderson model — •P. Karman, V. Z. Cerovski, and M. Schreiber — Institut für physik, Technische Universität Chemnitz, D-09107 Chemnitz

The density of states of the Bernoulli-Anderson model, defined as the tight-binding Hamiltonian of non-interacting electrons with disorder introduced by the random distribution of only two on-site energies, is studied using the large scale numerical diagonalization of Hamiltonians. In particular, we determine the band structure and the propreties of the band tail states and compare the results with the Anderson model of disorder.