Title
Theory of electron energy spectrum and Aharonov-Bohm effect in self-assembled <tex>$In_{x}Ga_{1-x}As$</tex> quantum rings in GaAs Theory of electron energy spectrum and Aharonov-Bohm effect in self-assembled <tex>$In_{x}Ga_{1-x}As$</tex> quantum rings in GaAs
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Lancaster, Pa ,
Subject
Physics
Source (journal)
Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015
Volume/pages
76(2007) :23 , p. 235320,1-235320,8
ISSN
1098-0121
1550-235X
1098-0121
Article Reference
235320
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We analyze theoretically the electron energy spectrum and the magnetization of an electron in a strained In(x)Ga(1-x)As/GaAs self-assembled quantum ring (SAQR) with realistic parameters, determined from the cross-sectional scanning-tunneling microscopy characterization of that nanostructure. The SAQRs have an asymmetric indium-rich craterlike shape with a depression rather than an opening at the center. Although the real SAQR shape differs strongly from an idealized circular-symmetric open ring structure, the Aharonov-Bohm oscillations of the magnetization survive.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/aee102/7819.pdf
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