Title:
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Density-functional calculations of magnetoplasmons in quantum rings
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Author:
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Emperador, Agustí; Barranco Gómez, Manuel; Lipparini, Enrico; Pi Pericay, Martí; Serra, Llorenç
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Other authors:
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Universitat de Barcelona |
Abstract:
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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. |
Subject(s):
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-Semiconductors -Teoria del funcional de densitat -Electrònica quàntica -Semiconductors -Density functional theory -Quantum electronics |
Rights:
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(c) The American Physical Society, 1999
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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