High-frequency oscillations in low-dimensional conductors and semiconductor superlattices induced by current in stack direction

S. N. Artemenko, S. V. Remizov

Research output: Contribution to journalArticle

Abstract

A narrow energy band of the electronic spectrum in some direction in low-dimensional crystals may lead to a negative differential conductance and N-shaped I-V curve that results in an instability of the uniform stationary state. A well-known stable solution for such a system is a state with electric field domain. We have found a uniform stable solution in the region of negative differential conductance. This solution describes uniform high-frequency voltage oscillations. Frequency of the oscillation is determined by antenna properties of the system. The results are applicable also to semiconductor superlattices.

Original languageEnglish
Article number245412
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number24
DOIs
Publication statusPublished - 15 Dec 2005

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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