Structure and far-infrared edge modes of quantum antidots at zero magnetic field

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Title:	Structure and far-infrared edge modes of quantum antidots at zero magnetic field
Author:	Emperador, Agustí; Pi Pericay, Martí; Barranco Gómez, Manuel; Lipparini, Enrico; Serra, Llorenç
Other authors:	Universitat de Barcelona
Abstract:	We have investigated edge modes of different multipolarity sustained by quantum antidots at zero magnetic field. The ground state of the antidot is described within a local-density-functional formalism. Two sum rules, which are exact within this formalism, have been derived and used to evaluate the energy of edge collective modes as a function of the surface density and the size of the antidot.
Subject(s):	-Superfícies (Física) -Propietats elèctriques -Propietats òptiques -Surfaces (Physics) -Electric properties -Optical properties
Rights:	(c) The American Physical Society, 1998
Document type:	Article Article - Published version
Published by:	The American Physical Society
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