Coupled molecular-dynamics Monte Carlo study of the transport properties of lateral surface superlattices

Toshishige Yamada, D. K. Ferry

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The transport properties of a lateral surface superlattice, a two-dimensional (2D) electron system in a 2D periodic potential, are studied with a molecular-dynamics Monte Carlo technique including the Coulomb interaction. Excellent numerical energy conservation is achieved by adopting a predictor-corrector algorithm to integrate the equations of motion. With increasing 2D potential amplitude, electrons show a transition, from a mobile phase to an immobile phase, where the radial distribution function has some characteristic peaks, indicating the beginning of the long-range ordering of the electrons in the potential minima. The velocity autocorrelation function shows a 2D plasma oscillation in the mobile phase, while in the immobile phase the classical oscillation at the bottom of the potential well is observed. Raising the temperature improves the transport since electrons are released from the constraint of the 2D potential and the Coulomb potential.

Original languageEnglish (US)
Pages (from-to)6416-6426
Number of pages11
JournalPhysical Review B
Volume47
Issue number11
DOIs
StatePublished - 1993

Fingerprint

Superlattices
Transport properties
superlattices
Molecular dynamics
transport properties
molecular dynamics
Electrons
Plasma oscillations
Electron transitions
Coulomb interactions
Autocorrelation
electrons
Equations of motion
Distribution functions
Energy conservation
plasma oscillations
energy conservation
Coulomb potential
radial distribution
autocorrelation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Coupled molecular-dynamics Monte Carlo study of the transport properties of lateral surface superlattices. / Yamada, Toshishige; Ferry, D. K.

In: Physical Review B, Vol. 47, No. 11, 1993, p. 6416-6426.

Research output: Contribution to journalArticle

Yamada, Toshishige ; Ferry, D. K. / Coupled molecular-dynamics Monte Carlo study of the transport properties of lateral surface superlattices. In: Physical Review B. 1993 ; Vol. 47, No. 11. pp. 6416-6426.
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