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Tunneling spectroscopy of a quantum dot through a single impurity

In English

Författare

Summary, in English

A single impurity inside a resonant tunneling diode is used to perform tunneling spectroscopy on an adjacent electrostatically defined vertical quantum dot. This results in tunneling between two zero-dimensional systems, measured as a set of sharp peaks in the current-voltage spectrum for finite bias. Magnetic-field-dependent measurements show that the angular momentum of the tunneling electrons is conserved during the tunneling process. Both ground and excited states are probed. The effect of temperature is also investigated, exhibiting a peak broadening that is smaller than 1 kT.

Publiceringsår

2003

Språk

Engelska

Sidor

4-4

Publikation/Tidskrift/Serie

Physical Review B (Condensed Matter and Materials Physics)

Volym

68

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

American Physical Society

Ämne

  • Condensed Matter Physics
  • Electrical Engineering, Electronic Engineering, Information Engineering

Nyckelord

  • WELLS
  • STATES

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1098-0121