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Moura, F. A. B. F., de ; Viana, L. P. ; Lyra, M. L. ; Malyshev, Andrey ; Domínguez-Adame Acosta, Francisco | Elsevier | 2008-10-27We study the dynamics of an electron wave-packet in a two-dimensional square lattice with an aperiodic site potential in the presence of an external uniform electric field. The aperiodicity is described by epsilon(m) = V cos(pi alpha m(x)(nu x))[...]texto impreso
Domínguez-Adame Acosta, Francisco ; Malyshev, Andrey ; Moura, F. A. B. F., de ; Lyra, M. L. | American Physical Society | 2003-11-07We 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([...]texto impreso
Moura, F. A. B. F., de ; Lyra, M. L. ; Domínguez-Adame Acosta, Francisco ; Malyshev, Andrey | American Physical Society | 2005-03We study the dynamics of an electron subjected to a static uniform electric field within a one-dimensional tight-binding model with a slowly varying aperiodic potential. The unbiased model is known to support phases of localized and extended one[...]texto impreso
Moura, F. A. B. F., de ; Lyra, M. L. ; Domínguez-Adame Acosta, Francisco ; Malyshev, Andrey | IOP Publishing Ltd. | 2007-02-07We study numerically the dynamics of a one-electron wavepacket in a two-dimensional random lattice with long-range correlated diagonal disorder in the presence of a uniform electric field. The time-dependent Schrodinger equation is used for this[...]
