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Title: Optical response of two-dimensional few-electron concentric double quantum rings: A local-spin-density-functional theory study
Author: Malet i Giralt, Francesc
Barranco Gómez, Manuel
Lipparini, Enrico
Serra, Llorenç
Pi Pericay, Martí
Keywords: Semiconductors
Spin (Física nuclear)
Electrònica quàntica
Nuclear spin
Quantum electronics
Issue Date: 2006
Publisher: The American Physical Society
Abstract: We have investigated the dipole charge- and spin-density response of few-electron two-dimensional concentric nanorings as a function of the intensity of a erpendicularly applied magnetic field. We show that the dipole response displays signatures associated with the localization of electron states in the inner and outer ring favored by the perpendicularly applied magnetic field. Electron localization produces a more fragmented spectrum due to the appearance of additional edge excitations in the inner and outer ring.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 2006, vol. 74, núm 19. 193309-1-193309-4
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ISSN: 1098-0121
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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