期刊
PHYSICS LETTERS A
卷 377, 期 16-17, 页码 1205-1209出版社
ELSEVIER
DOI: 10.1016/j.physleta.2013.03.013
关键词
Mobility edge; 1D superlattice geometry; Mean field approach; Mesoscale switch
资金
- Israel Science Foundation
- Israel-US Binational Science Foundation
- European Research Council under the European Union's Seventh Framework Program (FP7/2007-2013) [226628]
- Israel-Niedersachsen Research Fund
We show that a tight-binding one-dimensional chain composed of interacting and non-interacting atomic sites can exhibit multiple mobility edges at different values of carrier energy in presence of external electric field. Within a mean field Hartree-Fock approximation we numerically calculate two-terminal transport by using Green's function formalism. Several cases are analyzed depending on the arrangements of interacting and non-interacting atoms in the chain. The analysis may be helpful in designing mesoscale switching devices. (C) 2013 Elsevier B.V. All rights reserved.
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