Repulsion of energies of delocalized states in a double-layer system in a strong magnetic field

A. Gramada and M. E. Raikh
Phys. Rev. B 56, 3965 – Published 15 August 1997
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Abstract

A double-layer system in a strong perpendicular magnetic field is considered. Assuming a random potential in each layer to be smooth, we calculate the positions of the delocalized states within a wide range of the tunneling strengths. We show that each delocalized state is composed of alternating pieces of equipotentials from different layers. These combined equipotentials form a percolation network, the nodes of which are the regions where equipotentials from different layers nearly touch each other.

  • Received 18 April 1997

DOI:https://doi.org/10.1103/PhysRevB.56.3965

©1997 American Physical Society

Authors & Affiliations

A. Gramada and M. E. Raikh

  • Department of Physics, University of Utah, Salt Lake City, Utah 84112

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Vol. 56, Iss. 7 — 15 August 1997

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