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Abstracts
Resonant tunnelling via single impurities placed in a single barrier was experimentally studied. The typically observed structures in the current-voltage characteristics seem to be paired. Such a pair can be interpreted as ground and excited states of an impurity, related to X_{xy} and X_z valleys, which is in agreement with the results obtained for big mesas. However, it is not clear why X_{xy} states can be seen without any phonon participation.
Discipline
- 73.20.Hb: Impurity and defect levels; energy states of adsorbed species
- 73.63.-b: Electronic transport in nanoscale materials and structures(see also 73.23.-b Electronic transport in mesoscopic systems)
- 73.40.Gk: Tunneling(for tunneling in quantum Hall effects, see 73.43.Jn)
- 72.10.Fk: Scattering by point defects, dislocations, surfaces, and other imperfections (including Kondo effect)
- 72.10.Di: Scattering by phonons, magnons, and other nonlocalized excitations(see also 71.45.-d Collective effects in electronic structure of bulk materials)
Journal
Year
Volume
Issue
Pages
157-162
Physical description
Dates
published
2006-08
received
2006-06-17
Contributors
author
- Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland
author
- Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland
author
- Groupe d'Etude des Semiconducteurs, Université Montpellier II, CNRS, 34095 Montpellier, France
author
- Grenoble High Magnetic Field Laboratory, CNRS, 25 Avenue des Martyrs, 38042 Grenoble, France
author
- Groupe de Physique et Technologie des Nanostructures LPN - CNRS, 91460 Marcoussis, France
author
- Groupe de Physique et Technologie des Nanostructures LPN - CNRS, 91460 Marcoussis, France
author
- Groupe de Physique et Technologie des Nanostructures LPN - CNRS, 91460 Marcoussis, France
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv110n206kz