Probing local electronic states in the quantum Hall regime with a side-coupled quantum dot

Tomohiro Otsuka, Eisuke Abe, Yasuhiro Iye, Shingo Katsumoto

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We demonstrate a method for locally probing the electronic states in the quantum Hall regime utilizing a side-coupled quantum dot positioned at an edge of a Hall bar. By measuring the tunneling of electrons from the Hall bar into the dot, we acquire information on the local electrochemical potential and electron temperature. Furthermore, this method allows us to observe the spatial modulation of the electrostatic potential at the edge state due to many-body screening effect.

Original languageEnglish
Article number245302
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number24
DOIs
Publication statusPublished - 2010 Jun 2
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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