Title
Confined magnetic guiding orbit states
Author
Faculty/Department
Faculty of Sciences. Biology
Faculty of Sciences. Physics
Publication type
article
Publication
Paris ,
Subject
Physics
Source (journal)
Europhysics letters. - Paris
Volume/pages
59(2002) :5 , p. 749-753
ISSN
0295-5075
ISI
000177761700018
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
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/ − 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.
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