Spin-state mixing in InAs double quantum dots

被引：58

作者：

Pfund, A. ^{[1
]}

Shorubalko, I. ^{[1
]}

Ensslin, K. ^{[1
]}

Leturcq, R. ^{[1
]}

机构：

[1] ETH, Solid State Phys Lab, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.76.161308

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We quantify the contributions of hyperfine and spin-orbit-mediated singlet-triplet mixing in weakly coupled InAs quantum dots by electron transport spectroscopy in the Pauli spin-blockade regime. In contrast to double dots in GaAs, the spin-orbit coupling is found to be more than two orders of magnitudes larger than the hyperfine mixing energy. It is already effective at magnetic fields of a few mT, where deviations from pure hyperfine mixing are observed.

引用

页数：4

共 31 条

[1]

AMASHA S, ARXIVCONDMAT0607110, P22002

[2] Electric dipole spin resonance for heavy holes in quantum dots [J].

Bulaev, Denis V. ;

Loss, Daniel .

PHYSICAL REVIEW LETTERS, 2007, 98 (09)

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

Burkard, G ;

Loss, D ;

DiVincenzo, DP .

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

[4] Hyperfine interaction in a quantum dot: Non-Markovian electron spin dynamics [J].

Coish, WA ;

Loss, D .

PHYSICAL REVIEW B, 2004, 70 (19) :1-21

[5] ELECTRONIC ANALOG OF THE ELECTROOPTIC MODULATOR [J].

DATTA, S ;

DAS, B .

APPLIED PHYSICS LETTERS, 1990, 56 (07) :665-667

[6] Spin relaxation in a two-electron quantum dot [J].

Dickmann, S ;

Hawrylak, P .

JETP LETTERS, 2003, 77 (01) :30-33

[7] Nucleus-mediated spin-flip transitions in GaAs quantum dots [J].

Erlingsson, SI ;

Nazarov, YV ;

Fal'ko, VI .

PHYSICAL REVIEW B, 2001, 64 (19)

[8] Direct measurement of the spin-orbit interaction in a two-electron InAs nanowire quantum dot [J].

Fasth, C. ;

Fuhrer, A. ;

Samuelson, L. ;

Golovach, Vitaly N. ;

Loss, Daniel .

PHYSICAL REVIEW LETTERS, 2007, 98 (26)

[9] Spin-orbit mediated control of spin qubits [J].

Flindt, Christian ;

Sorensen, Anders S. ;

Flensberg, Karsten .

PHYSICAL REVIEW LETTERS, 2006, 97 (24)

[10]

GOLDMAN JR, 2005, THESIS STANFORD U, P22002

← 1 2 3 4 →