Transport in lateral surface superlattices

R. K. Reich, R. O. Grondin, D. K. Ferry

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


A numerical Monte Carlo simulation is carried out to find the velocity and energy as a function of the electric field for a surface superlattice structure. The energy is found to saturate at the half-filled-band energy, while the velocity displays a negative differential conductivity. The scattering rates included in the Monte Carlo routine have Van Hove singularities arising from the electron density of states. This singularity is removed by including a self-energy correction to the electron Green's function. The simulations indicate that the negative differential conductivity is due to Bloch oscillations of the electrons.

Original languageEnglish (US)
Pages (from-to)3483-3493
Number of pages11
JournalPhysical Review B
Issue number6
StatePublished - 1983

ASJC Scopus subject areas

  • Condensed Matter Physics


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