Title
Dielectric mismatch effect on coupled impurity states in a freestanding nanowire Dielectric mismatch effect on coupled impurity states in a freestanding nanowire
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Luton ,
Subject
Physics
Source (journal)
Microelectronics journal. - Luton
Volume/pages
40(2009) :3 , p. 446-448
ISSN
0026-2692
ISI
000264694700017
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We studied the coupled impurity states in a freestanding semiconductor nanowire (NW), within the effective mass approximation and including the effect of the dielectric mismatch, by using finite element method. Bonding and anti-bonding states are found and their energies converge with increasing distance di between the two impurities. The dependence of the binding energy on the wire radius R and the distance di between the two impurities is investigated, and we compare it with the result of a freestanding NW that contains a single impurity.
E-info
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