Two-electron lateral quantum-dot molecules in a magnetic field

被引：47

作者：

Helle, M ^{[1
]}

Harju, A ^{[1
]}

Nieminen, RM ^{[1
]}

机构：

[1] Aalto Univ, Phys Lab, FIN-02015 Helsinki, Finland

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.72.205329

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Laterally coupled quantum dot molecules are studied using exact diagonalization techniques. We examine the two-electron singlet-triplet energy difference as a function of magnetic field strength and investigate the magnetization and vortex formation of two- and four-minima lateral quantum dot molecules. Special attention is paid to the analysis of how the distorted symmetry affects the properties of quantum-dot molecules.

引用

收藏

页数：24

相关论文

共 50 条

[1] Orbital magnetization of single and double quantum dots in a tight-binding model [J].

Aldea, A ;

Moldoveanu, V ;

Nita, M ;

Manolescu, A ;

Gudmundsson, V ;

Tanatar, B .

PHYSICAL REVIEW B, 2003, 67 (03)

[2] Localization in artificial disorder: Two coupled quantum dots [J].

Brodsky, M ;

Zhitenev, NB ;

Ashoori, C ;

Pfeiffer, LN ;

West, KW .

PHYSICAL REVIEW LETTERS, 2000, 85 (11) :2356-2359

[3] Coupled quantum dots as quantum gates [J].

Burkard, G ;

Loss, D ;

DiVincenzo, DP .

PHYSICAL REVIEW B, 1999, 59 (03) :2070-2078

[4] Optical signatures of spin-orbit interaction effects in a parabolic quantum dot -: art. no. 136603 [J].

Chakraborty, T ;

Pietiläinen, P .

PHYSICAL REVIEW LETTERS, 2005, 95 (13)

[5] MAGNETOOPTICAL TRANSITIONS AND LEVEL-CROSSINGS IN A COULOMB-COUPLED PAIR OF QUANTUM DOTS [J].

CHAKRABORTY, T ;

HALONEN, V ;

PIETILAINEN, P .

PHYSICAL REVIEW B, 1991, 43 (17) :14289-14292

[6]

Chakraborty T., 1995, QUANTUM HALL EFFECTS

[7] Magnetization of nanoscopic quantum rings and dots [J].

Climente, JI ;

Planelles, J ;

Movilla, JL .

PHYSICAL REVIEW B, 2004, 70 (08) :081301-1

[8] Global view on the electronic properties of two-electron anisotropic quantum dots [J].

Drouvelis, PS ;

Schmelcher, P ;

Diakonos, FK .

PHYSICAL REVIEW B, 2004, 69 (03)

[9] Probing the shape of quantum dots with magnetic fields [J].

Drouvelis, PS ;

Schmelcher, P ;

Diakonos, FK .

PHYSICAL REVIEW B, 2004, 69 (15) :155312-1

[10] Effects of anisotropy and magnetic fields on two-electron parabolic quantum dots [J].

Drouvelis, PS ;

Schmelcher, P ;

Diakonos, FK .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (21) :3633-3646

← 1 2 3 4 5 →