| Issue |
Europhys. Lett.
Volume 59, Number 5, September 2002
|
|
|---|---|---|
| Page(s) | 749 - 753 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2002-00189-8 | |
| Published online | 01 September 2002 | |
Confined magnetic guiding orbit states
1
Departement Natuurkunde, Universiteit
Antwerpen (UIA) Universiteitsplein 1, B-2610 Antwerpen,
Belgium
2
Department of Physics, Concordia University -
1455 de Maisonneuve Ouest Montréal, Québec Canada,
H3G1M8
Corresponding authors: amatulis@takas.lt, peeters@uia.ua.ac.be
Received:
9
April
2002
Accepted:
14
June
2002
We show how snake-orbit states which run along a magnetic edge can
be confined electrically. We consider a two-dimensional electron
gas (2DEG) confined into a quantum wire, subjected to a strong
perpendicular and steplike magnetic field B/
. Close to this
magnetic step, new, spatially confined bound states arise as a
result of the lateral confinement and the magnetic-field step. The
number of states, with energy below the first Landau level,
increases as B becomes stronger or as the wire width becomes
larger. These bound states can be understood as an interference
between two counter-propagating one-dimensional snake-orbit
states.
PACS: 73.20.-r – Electron states at surfaces and interfaces / 73.23.-b – Electronic transport in mesoscopic systems / 73.40.-c – Electronic transport in interface structures
© EDP Sciences, 2002
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