Berlin 2008 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 17: Poster I
DY 17.9: Poster
Dienstag, 26. Februar 2008, 16:00–18:00, Poster C
Multifractal Analysis of the Metal to Insulator Transition in the Three-Dimensional Anderson Model — Louella J. Vasquez1, Alberto Rodriguez1,2, and •Rudolf A. Roemer1 — 1Department of Physics and Centre for Scientific Computing, University of Warwick, CV47AL United Kingdom — 2Departamento de Fisica Fundamental, Universidad de Salamanca, 37008 Salamanca, Spain
The wavefunctions at the metal to insulator transition (MIT) of a disordered system within the Anderson model of localization have been shown to be of multifractal nature. In this paper we use a multifractal analysis to compute for the singularity spectra of very large wavefunctions at the band center. We will show that the singularity spectrum at the MIT is independent of the system size. We compare our results with recent findings and the Wegener prediction.