%0 Journal Article
%A Domínguez-Adame Acosta, Francisco
%A Malyshev, Andrey
%A Moura, F. A. B. F., de
%A Lyra, M. L.
%T Bloch-like oscillations in a one-dimensional lattice with long-range correlated disorder
%D 2003
%@ 0031-9007
%U https://hdl.handle.net/20.500.14352/51258
%X We study the dynamics of an electron subjected to a uniform electric field within a tight-binding model with long-range-correlated diagonal disorder. The random distribution of site energies is assumed to have a power spectrum S(k)similar to1/k(alpha) with alpha>0. de Moura and Lyra [Phys. Rev. Lett. 81, 3735 (1998)10.1103/Phys. Rev. Lett.81.3735] predicted that this model supports a phase of delocalized states at the band center, separated from localized states by two mobility edges, provided alpha>2. We find clear signatures of Bloch-like oscillations of an initial Gaussian wave packet between the two mobility edges and determine the bandwidth of extended states, in perfect agreement with the zero-field prediction.
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