Spin relaxation in a two-electron quantum dot

被引：10

作者：

Dickmann, S ^{[1
]}

Hawrylak, P

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Region, Russia

[2] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

[3] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada

来源：

JETP LETTERS | 2003年 / 77卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1561977

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the rate of relaxation of the total spin in a two-electron droplet in the vicinity of the magnetic-field-driven singlet-triplet transition. The total spin relaxation is attributed to spin-orbit and electron-phonon interactions. The relaxation process is found to depend on the spin of ground and excited states. This asymmetry is used to explain puzzles in recent high source-drain transport experiments. (C) 2003 MAIK "Nauka/Interperiodica".

引用

页码：30 / 33

页数：4

共 20 条

[1] ELECTRONIC-PROPERTIES OF TWO-DIMENSIONAL SYSTEMS [J].

ANDO, T ;

FOWLER, AB ;

STERN, F .

REVIEWS OF MODERN PHYSICS, 1982, 54 (02) :437-672

[2] N-ELECTRON GROUND-STATE ENERGIES OF A QUANTUM-DOT IN MAGNETIC-FIELD [J].

ASHOORI, RC ;

STORMER, HL ;

WEINER, JS ;

PFEIFFER, LN ;

BALDWIN, KW ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1993, 71 (04) :613-616

[3] Electrons in artificial atoms [J].

Ashoori, RC .

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

[4] SPIN-FLIP RELAXATION-TIME OF QUANTUM-WELL ELECTRONS IN A STRONG MAGNETIC-FIELD [J].

BASTARD, G .

PHYSICAL REVIEW B, 1992, 46 (07) :4253-4256

[5]

Bychkov Y. A., 1984, JETP LETT, V39, P66

[6]

Chakraborty T., 1992, Comments on Condensed Matter Physics, V16, P35

[7] Sound and heat absorption by a two-dimensional electron gas in an odd-integer quantized Hall regime [J].

Dickmann, S .

PHYSICAL REVIEW B, 2000, 61 (08) :5461-5472

[8]

Dikman SM, 1996, ZH EKSP TEOR FIZ+, V110, P238

[9]

DYAKONOV MI, 1986, SOV PHYS SEMICOND+, V20, P110

[10] Allowed and forbidden transitions in artificial hydrogen and helium atoms [J].

Fujisawa, T ;

Austing, DG ;

Tokura, Y ;

Hirayama, Y ;

Tarucha, S .

NATURE, 2002, 419 (6904) :278-281

← 1 2 →