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Title: Density-functional calculations of magnetoplasmons in quantum rings
Author: Emperador, Agustí
Barranco Gómez, Manuel
Lipparini, Enrico
Pi Pericay, Martí
Serra, Llorenç
Keywords: Semiconductors
Teoria del funcional de densitat
Electrònica quàntica
Density functional theory
Quantum electronics
Issue Date: 1999
Publisher: The American Physical Society
Abstract: We have studied the structure and dipole charge-density response of nanorings as a function of the magnetic field using local-spin-density-functional theory. Two small rings consisting of 12 and 22 electrons confined by a positively charged background are used to represent the cases of narrow and wide rings. The results are qualitatively compared with experimental data existing on microrings and on antidots. A smaller ring containing five electrons is also analyzed to allow for a closer comparison with a recent experiment on a two-electron quantum ring.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 1999, vol. 59, num. 23, p. 15301-15307
ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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