Correlated few-particle states in artificial bipolar molecule

被引:14
作者
Anisimovas, E [1 ]
Peeters, FM [1 ]
机构
[1] Univ Instelling Antwerp, Dept Nat Kunde, B-2610 Wilrijk, Belgium
来源
PHYSICAL REVIEW B | 2002年 / 65卷 / 23期
关键词
D O I
10.1103/PhysRevB.65.233302
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We investigate the ground and excited states of a bipolar artificial molecule composed of two vertically coupled quantum dots containing different type of carriers-electrons and holes-in equilibrium. The approach based on exact diagonalization is used and reveals an intricate pattern of ground-state angular momentum switching and a rearrangement of approximate single-particle levels as a function of the interdot coupling strength.
引用
收藏
页码:1 / 4
页数:4
相关论文
共 20 条
[1]   ELECTRONIC-STRUCTURE AND SEMICONDUCTOR-SEMIMETAL TRANSITION IN INAS-GASB SUPER-LATTICES [J].
ALTARELLI, M .
PHYSICAL REVIEW B, 1983, 28 (02) :842-845
[2]   INTERACTING ELECTRONS IN TWO-DIMENSIONAL LANDAU-LEVELS - RESULTS FOR SMALL CLUSTERS [J].
GIRVIN, SM ;
JACH, T .
PHYSICAL REVIEW B, 1983, 28 (08) :4506-4509
[3]   Excitonic absorption in a quantum dot [J].
Hawrylak, P ;
Narvaez, GA ;
Bayer, M ;
Forchel, A .
PHYSICAL REVIEW LETTERS, 2000, 85 (02) :389-392
[4]  
Jacak L., 1998, QUANTUM DOTS
[5]   COMPOSITE FERMIONS IN QUANTUM DOTS [J].
JAIN, JK ;
KAWAMURA, T .
EUROPHYSICS LETTERS, 1995, 29 (04) :321-326
[6]   COMPOSITE-FERMION DESCRIPTION OF CORRELATED ELECTRONS IN QUANTUM DOTS - LOW-ZEEMAN-ENERGY LIMIT [J].
KAMILLA, RK ;
JAIN, JK .
PHYSICAL REVIEW B, 1995, 52 (04) :2798-2804
[7]   Far-infrared magneto-optical study of two-dimensional electrons and holes in InAs/AlxGa1-xSb quantum wells [J].
Kono, J ;
McCombe, BD ;
Cheng, JP ;
Lo, I ;
Mitchel, WC ;
Stutz, CE .
PHYSICAL REVIEW B, 1997, 55 (03) :1617-1636
[8]   QUANTIZED MOTION OF 3 TWO-DIMENSIONAL ELECTRONS IN A STRONG MAGNETIC-FIELD [J].
LAUGHLIN, RB .
PHYSICAL REVIEW B, 1983, 27 (06) :3383-3389
[9]   Phase transitions of electron-hole and unbalanced electron systems in coupled quantum wells in high magnetic fields [J].
Lozovik, YE ;
Berman, OL ;
Tsvetus, VG .
PHYSICAL REVIEW B, 1999, 59 (08) :5627-5636
[10]  
LOZOVIK YE, 1975, JETP LETT+, V22, P274