Strongly correlated multilayered nanostructures near the Mott transition

Details Strongly correlated multilayered nanostructures near the Mott transition Strongly correlated multilayered nanostructures near the Mott transition

2004-08-10

arxiv.org/abs/cond-mat/0408225v1

phys. stat. sol. b 242, 189--195 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 6 figures, conference proceedings for the 24th international conference in theoretical physics, Ustron, Poland, submi

Scientific paper

10.1002/pssb.200460021

We examine devices constructed out of multilayered sandwiches of semi-infinite metal--barrier--semi-infinite metal, with the barrier tuned to lie near the quantum critical point of the Mott metal-insulator transition. By employing dynamical mean field theory, we are able to solve the many-body problem exactly (within the local approximation) and determine the density of states through the nanostructure and the charge transport perpendicular to the planes. We introduce a generalization of the Thouless energy that describes the crossover from tunneling to incoherent thermally activated transport.

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