Title
Dielectric mismatch effect on coupled shallow impurity states in a semiconductor nanowire Dielectric mismatch effect on coupled shallow impurity states in a semiconductor nanowire
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Lancaster, Pa ,
Subject
Physics
Source (journal)
Physical review : B : solid state. - Lancaster, Pa, 1970 - 1978
Volume/pages
79(2009) :8 , p. 085306,1-085306,7
ISSN
0556-2805
ISI
000263816000051
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Coupled shallow impurity states in a freestanding semiconductor nanowire and in a semiconductor nanowire surrounded by a metallic gate are studied within the effective-mass approximation. Bonding and antibonding states are found due to the coupling of the two impurities, and their energy converges with increasing distance di between the two impurities. The dependences of the binding energy on the wire radius R, the distance di between the two impurities, and the impurity radial position in the nanowire are examined.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/fab5b3/a75004b1.pdf
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