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Discrete perimeter plasmon excitations of electron gases in a quasi-one-dimensional wire: ring geometry

Authors
Journal
Physics Letters A
0375-9601
Publisher
Elsevier
Publication Date
Volume
149
Issue
4
Identifiers
DOI: 10.1016/0375-9601(90)90331-h
Disciplines
  • Mathematics

Abstract

Abstract A self-consistent-field theory is applied to electron gases confined to a quasi-one-dimensional wire with a ring geometry. An analytical expression of the dynamic dielectric function is obtained. Collective excitations of the electron gases are studied. Different from the usual two-dimensional or quasi-one-dimensional plasmon modes, novel perimeter plasmon modes of the discrete dispersion relation due to angular subband transitions are found.

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