Go to content
UR Home

Aharonov–Bohm oscillations of a tuneable quantum ring

DOI to cite this document:
Keyser, U. F. ; Borck, S. ; Haug, R. J. ; Abstreiter, Gerhard ; Bichler, Max ; Wegscheider, Werner
(213kB) - Repository staff only
Date of publication of this fulltext: 07 Dec 2009 13:07


Using an atomic force microscope a ring geometry with self-aligned in-plane gates was directly written into a GaAs/AlGaAs heterostructure. Transport measurements in the open regime show only one transmitting mode and Aharonov–Bohm oscillations with more than 50% modulation are observed in the conductance. The tuning via in-plane gates allows one to study the Aharonov–Bohm effect in the whole range from the open ring to the Coulomb-blockade regime.

Owner only: item control page
  1. Homepage UR

University Library

Publication Server


Publishing: oa@ur.de
0941 943 -4239 or -69394

Dissertations: dissertationen@ur.de
0941 943 -3904

Research data: datahub@ur.de
0941 943 -5707

Contact persons