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arXiv · 1211.1497

Mobility edge phenomenon in a Hubbard chain: A mean field study

Santanu K. Maiti·Abraham Nitzan
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Abstract

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.

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Santanu K. Maiti, Abraham Nitzan. 2012-11-07. Mobility edge phenomenon in a Hubbard chain: A mean field study. https://doi.org/10.1016/j.physleta.2013.03.013

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