Three-dimensional analysis of the rectifying properties of geometrically asymmetric metal-vacuum-metal junctions treated as an oscillating barrier

A. Mayer, M. S. Chung, Brock Landon Weiss, N. M. Miskovsky, P. H. Cutler

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We study the rectification properties of geometrically asymmetric metal-vacuum-metal junctions treated as an oscillating barrier. In particular, we focus on systems in which an oscillating bias is established between a cathode characterized by a hemispherical protrusion and a flat anode. We propose a quantum-mechanical approach of this problem by using a transfer-matrix methodology, with developments that enable the time dependence of the external bias to be accounted for explicitly. This study extends the quasistatic analysis presented in our previous work. In particular, we study how the rectification properties of these junctions depend on the frequency and the amplitude of the oscillating barrier. We also determine the power this device could provide to an external load and the efficiency, with which the energy of an incident radiation can be converted into a useful dc. It is demonstrated that rectification of optical frequencies is possible by using the nanoscale device discussed in this paper.

Original languageEnglish (US)
Article number205404
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number20
DOIs
StatePublished - Nov 4 2008

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dimensional analysis
rectification
Metals
Vacuum
vacuum
metals
Anodes
Cathodes
incident radiation
Radiation
time dependence
anodes
cathodes
methodology
energy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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abstract = "We study the rectification properties of geometrically asymmetric metal-vacuum-metal junctions treated as an oscillating barrier. In particular, we focus on systems in which an oscillating bias is established between a cathode characterized by a hemispherical protrusion and a flat anode. We propose a quantum-mechanical approach of this problem by using a transfer-matrix methodology, with developments that enable the time dependence of the external bias to be accounted for explicitly. This study extends the quasistatic analysis presented in our previous work. In particular, we study how the rectification properties of these junctions depend on the frequency and the amplitude of the oscillating barrier. We also determine the power this device could provide to an external load and the efficiency, with which the energy of an incident radiation can be converted into a useful dc. It is demonstrated that rectification of optical frequencies is possible by using the nanoscale device discussed in this paper.",
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Three-dimensional analysis of the rectifying properties of geometrically asymmetric metal-vacuum-metal junctions treated as an oscillating barrier. / Mayer, A.; Chung, M. S.; Weiss, Brock Landon; Miskovsky, N. M.; Cutler, P. H.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 78, No. 20, 205404, 04.11.2008.

Research output: Contribution to journalArticle

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