Density-functional calculations of magnetoplasmons in quantum rings

被引：35

作者：

Emperador, A ^{[1
]}

Barranco, M

Lipparini, E

Pi, M

Serra, L

机构：

[1] Univ Barcelona, Fac Fis, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

[2] Univ Trent, Dipartimento Fis, I-38050 Trento, Italy

[3] INFM, Sez Trento, I-38050 Trento, Italy

[4] Univ Illes Balears, Dept Fis, Fac Ciencies, E-07071 Palma de Mallorca, Spain

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.59.15301

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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. [S0163-1829(99)02723-X].

引用

页码：15301 / 15307

页数：7

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