Vertically coupled quantum dots in the local spin-density functional theory

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Títol:	Vertically coupled quantum dots in the local spin-density functional theory
Autor/a:	Pi Pericay, Martí; Emperador, Agustí; Barranco Gómez, Manuel; Garcias, Francisca
Altres autors:	Universitat de Barcelona
Abstract:	We have investigated the structure of double quantum dots vertically coupled at zero magnetic field within local-spin-density functional theory. The dots are identical and have a finite width, and the whole system is axially symmetric. We first discuss the effect of thickness on the addition spectrum of one single dot. Next we describe the structure of coupled dots as a function of the interdot distance for different electron numbers. Addition spectra, Hund's rule, and molecular-type configurations are discussed. It is shown that self-interaction corrections to the density-functional results do not play a very important role in the calculated addition spectra
Matèries:	-Transformacions de fase (Física estadística) -Teoria del funcional de densitat -Semiconductors -Phase transformations (Statistical physics) -Density functional theory -Semiconductors
Drets:	(c) The American Physical Society, 2001
Tipus de document:	Article Article - Versió publicada
Publicat per:	The American Physical Society
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Pi Pericay, Martí; Emperador, Agustí; Barranco Gómez, Manuel; Garcias, Francisca; Muraki, K.; Tarucha, S.; Austing, D. G.

Serra, Llorenç; Garcias, Francisca; Navarro Faus, Jesús; Barberán Falcón, Núria; Barranco Gómez, Manuel; Pi Pericay, Martí

Emperador, Agustí; Pi Pericay, Martí; Barranco Gómez, Manuel; Lipparini, Enrico; Serra, Llorenç

Emperador, Agustí; Barranco Gómez, Manuel; Lipparini, Enrico; Pi Pericay, Martí; Serra, Llorenç

Pi Pericay, Martí; Barranco Gómez, Manuel; Emperador, Agustí; Lipparini, Enrico; Serra, Llorenç

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