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A Fermi Pump

  • Mathias Wagner
  • Fernando Sols
Conference paper
Part of the Lecture Notes in Physics book series (LNP, volume 547)

Abstract

The use of a band offset between the two leads of an electron pump driven by a locally applied oscillating gate voltage is shown to increase the pump current dramatically. A spectral analysis reveals that the bulk of the pump current flows deep within the Fermi sea and not at the Fermi surface, especially in higher spatial dimensions, thereby rendering this effect insensitive to temperature.

Keywords

Fermi Surface Transmission Probability Incident Electron Pump Current Spatial Asymmetry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • Mathias Wagner
    • 1
  • Fernando Sols
    • 2
  1. 1.Hitachi Cambridge LaboratoryCambridgeUnited Kingdom
  2. 2.Dpto. de Física Teórica de la Materia Condensada, C-V and Instituto de Ciencia de Materiales “Nicolás Cabrera”Universidad Autónoma de MadridMadridSpain

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