Magnetotransport properties of lateral-surface superlattices by molecular-dynamics Monte Carlo simulation

Toshishige Yamada, D. K. Ferry

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The magnetotransport properties of a lateral-surface superlattice, a two-dimensional (2D) electron system in a 2D periodic potential, are studied with use of a Monte Carlo technique, where the effect of the magnetic field is included through a Lorentz force and the interparticle Coulomb interaction is included with a molecular-dynamics method. Excellent numerical energy conservation is achieved by adopting a predictor-corrector algorithm to integrate the equations of motion. The simulation shows that the diffusion constant, as a function of the magnetic field, is not a simple monotone function but has a structure with multiple minima. This structure is attributed to the correlated circular electron motion, and this is reminiscent of classical pinning orbits in a 2D antidot array, even in the presence of the Coulomb interaction. The radial-distribution function shows no significant dependence upon the magnetic field up to ten flux quanta per unit cell.

Original languageEnglish (US)
Pages (from-to)1444-1452
Number of pages9
JournalPhysical Review B
Volume47
Issue number3
DOIs
StatePublished - Jan 1 1993

ASJC Scopus subject areas

  • Condensed Matter Physics

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