Tuning of anisotropy in two-electron quantum dots by spin-orbit interactions

被引：8

作者：

Liu, Y. ^{[1
]}

Cheng, F. ^{[1
]}

Li, X. J. ^{[2
]}

Peeters, F. M. ^{[3
]}

Chang, Kai ^{[1
]}

机构：

[1] Chinese Acad Sci, SKLSM, Inst Semicond, Beijing 100083, Peoples R China

[2] Fujian Normal Univ, Sch Phys & Optoelect Technol, Fuzhou 350007, Peoples R China

[3] Univ Antwerp, Dept Phys, B-2020 Antwerp, Belgium

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 03期

关键词：

ARTIFICIAL ATOMS;

D O I：

10.1063/1.3610961

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate the influence of the spin-orbit interactions (SOIs) on the electron distribution and the optical absorption of a two-electron quantum dot. It is shown that the interplay between the SOIs makes the two-electron quantum dot behave like two laterally coupled quantum dots and the anisotropic distribution can be rotated from [110] to [1 (1) over bar0] by reversing the direction of the perpendicular electric field and detect it through the optical absorption spectrum. (C) 2011 American Institute of Physics. [doi :10.1063/1.3610961]

引用

页数：3

共 15 条

[1] Electrons in artificial atoms [J].

Ashoori, RC .

NATURE, 1996, 379 (6564) :413-419

[2] Electron correlations in a quantum dot with Bychkov-Rashba coupling -: art. no. 113305 [J].

Chakraborty, T ;

Pietiläinen, P .

PHYSICAL REVIEW B, 2005, 71 (11)

[3] Collapse of the spin-singlet phase in quantum dots [J].

Ciorga, M ;

Wensauer, A ;

Pioro-Ladriere, M ;

Korkusinski, M ;

Kyriakidis, J ;

Sachrajda, AS ;

Hawrylak, P .

PHYSICAL REVIEW LETTERS, 2002, 88 (25) :4

[4] SPIN-ORBIT COUPLING EFFECTS IN ZINC BLENDE STRUCTURES [J].

DRESSELHAUS, G .

PHYSICAL REVIEW, 1955, 100 (02) :580-586

[5] Large Rashba splitting in InAs quantum wells due to electron wave function penetration into the barrier layers [J].

Grundler, D .

PHYSICAL REVIEW LETTERS, 2000, 84 (26) :6074-6077

[6] Quantum information processing using quantum dot spins and cavity QED [J].

Imamoglu, A ;

Awschalom, DD ;

Burkard, G ;

DiVincenzo, DP ;

Loss, D ;

Sherwin, M ;

Small, A .

PHYSICAL REVIEW LETTERS, 1999, 83 (20) :4204-4207

[7] ARTIFICIAL ATOMS [J].

KASTNER, MA .

PHYSICS TODAY, 1993, 46 (01) :24-31

[8] Quantum computation with quantum dots [J].

Loss, D ;

DiVincenzo, DP .

PHYSICAL REVIEW A, 1998, 57 (01) :120-126

[9]

Nitta J, 1997, PHYS REV LETT, V78, P1335, DOI 10.1103/PhysRevLett.78.1335

[10] Spin-interference device [J].

Nitta, J ;

Meijer, FE ;

Takayanagi, H .

APPLIED PHYSICS LETTERS, 1999, 75 (05) :695-697

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