Mapping an electron wave function by a local electron scattering probe
Abstract
A technique is developed which allows for the detailed mapping of the electronic wave function in
two-dimensional electron gases with low-temperature mobilities up to 15 10 cm V s ´ 6 2 11 - - . Thin
(‘delta’) layers of aluminium are placed into the regions where the electrons reside. This causes
electron scattering which depends very locally on the amplitude of the electron wave function at the
position of the Al δ-layer. By changing the distance of this layer from the interface we map the shape of
the wave function perpendicular to the interface. Despite having a profound effect on the electron
mobiliy, the δ-layers do not cause a widening of the quantum Hall plateaus.
Main Authors
Format
Articles
Research article
Published
2015
Series
Subjects
Publication in research information system
Publisher
Institute of Physics Publishing Ltd.; Deutsche Physikalische Gesellschaft
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201601041003Use this for linking
Review status
Peer reviewed
ISSN
1367-2630
DOI
https://doi.org/10.1088/1367-2630/17/11/113048
Language
English
Published in
New Journal of Physics
Citation
- Reichl, C., Dietsche, W., Tschirky, T., Hyart, T., & Wegscheider, W. (2015). Mapping an electron wave function by a local electron scattering probe. New Journal of Physics, 17, Article 113048. https://doi.org/10.1088/1367-2630/17/11/113048
License
Copyright© 2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. This is an open access article published under the terms of the Creative Commons Attribution 3.0 licence.