Limiting current density in a crossed-field nanogap

L. K. Ang, T. J. T. Kwan, and Y. Y. Lau
Phys. Rev. E 64, 017501 – Published 12 June 2001
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Abstract

Using a mean-field theory, we have studied the quantum extension on the limiting current density in a crossed-field nanogap. When the gap spacing is less than the electron wavelength, our results show that the limiting current density is increased by a large factor from the classical values due to the effects of electron tunneling. The effects of the external magnetic field diminish with a decrease of gap spacing. Smooth transition from the classical regime to the quantum regime is demonstrated.

  • Received 9 January 2001

DOI:https://doi.org/10.1103/PhysRevE.64.017501

©2001 American Physical Society

Authors & Affiliations

L. K. Ang and T. J. T. Kwan

  • Applied Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

Y. Y. Lau

  • Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109-2104

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Vol. 64, Iss. 1 — July 2001

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