Quantized pumped charge due to surface acoustic waves in a one-dimensional channel

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

The quantum-mechanical adiabatic current, pumped through an unbiased one-dimensional (1D) channel, connected to two 1D leads and subject to surface acoustic waves (SAW), is calculated exactly for noninteracting electrons. The resulting pumped charge (during each period of the SAW) exhibits a staircase structure, with integer values (in units of electronic charge). We also find staircases for higher harmonics of the current. The qualitative dependence of these staircases on many parameters is reminiscent of experimental observations.

Original languageEnglish GB
Pages (from-to)2414011-2414014
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number24
DOIs
StatePublished - 15 Jun 2002
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Quantized pumped charge due to surface acoustic waves in a one-dimensional channel'. Together they form a unique fingerprint.

Cite this