SELF-CONSISTENT MODEL OF MAGNETOPLASMONS IN QUANTUM DOTS WITH NEARLY PARABOLIC CONFINEMENT POTENTIALS

被引：114

作者：

GUDMUNDSSON, V ^{[1
]}

GERHARDTS, RR ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,W-7000 STUTTGART 80,GERMANY

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.43.12098

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the longitudinal collective oscillations of a two-dimensional interacting electron gas (2DEG) confined to a disk (quantum dot) in a perpendicular constant magnetic field. We show how the exact results known for a parabolically confined 2DEG change when the confining potential and the electron number are varied. Considering reasonable corrections to a parabolic confinement potential, we are able to explain all features of the far-infrared spectrum of quantum dots observed in recent experiments.

引用

页码：12098 / 12101

页数：4

共 13 条

[1] DIMENSIONAL RESONANCE OF THE TWO-DIMENSIONAL ELECTRON-GAS IN SELECTIVELY DOPED GAAS/ALGAAS HETEROSTRUCTURES
ALLEN, SJ
STORMER, HL
HWANG, JCM
[J]. PHYSICAL REVIEW B, 1983, 28 (08) : 4875 - 4877
[2] ELECTROMAGNETIC RESPONSE OF QUANTUM DOTS
BAKSHI, P
BROIDO, DA
KEMPA, K
[J]. PHYSICAL REVIEW B, 1990, 42 (12): : 7416 - 7419
[3] SELF-CONSISTENT FAR-INFRARED RESPONSE OF QUANTUM-DOT STRUCTURES
BROIDO, DA
KEMPA, K
BAKSHI, P
[J]. PHYSICAL REVIEW B, 1990, 42 (17): : 11400 - 11403
[4] NONLOCAL DYNAMIC-RESPONSE AND LEVEL-CROSSINGS IN QUANTUM-DOT STRUCTURES
DEMEL, T
HEITMANN, D
GRAMBOW, P
PLOOG, K
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (07) : 788 - 791
[5] EDGE MAGNETOPLASMONS IN A BOUNDED TWO-DIMENSIONAL ELECTRON FLUID
FETTER, AL
[J]. PHYSICAL REVIEW B, 1985, 32 (12): : 7676 - 7684
[6] MAGNETOPLASMONS IN A TWO-DIMENSIONAL ELECTRON FLUID - DISK GEOMETRY
FETTER, AL
[J]. PHYSICAL REVIEW B, 1986, 33 (08): : 5221 - 5227
[7] Note to the Quantification of the harmonic Oscillator in a Magnetic Field
Fock, V.
[J]. ZEITSCHRIFT FUR PHYSIK, 1928, 47 (5-6): : 446 - 448
[8] OSCILLATING IMPURITY SPECTRA CAUSED BY NONLINEAR SCREENING IN THE QUANTUM HALL REGIME
GUDMUNDSSON, V
[J]. SOLID STATE COMMUNICATIONS, 1990, 74 (02) : 63 - 67
[9] HALONEN V, UNPUB
[10] QUANTUM DOTS IN A MAGNETIC-FIELD - ROLE OF ELECTRON-ELECTRON INTERACTIONS
MAKSYM, PA
CHAKRABORTY, T
[J]. PHYSICAL REVIEW LETTERS, 1990, 65 (01) : 108 - 111

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