Hole-Nuclear Spin Interaction in Quantum Dots

被引：126

作者：

Eble, B. ^{[1
]}

Testelin, C. ^{[1
]}

Desfonds, P. ^{[1
]}

Bernardot, F. ^{[1
]}

Balocchi, A. ^{[2
,3
,4
]}

Amand, T. ^{[2
,3
,4
]}

Miard, A. ^{[5
]}

Lemaitre, A. ^{[5
]}

Marie, X. ^{[2
,3
,4
]}

Chamarro, M. ^{[1
]}

机构：

[1] Univ Paris 06, INSP, UMR 7588, F-75015 Paris, France

[2] Univ Toulouse, F-31077 Toulouse, France

[3] CNRS, UPS, INSA, F-31077 Toulouse, France

[4] LPCNO, F-31077 Toulouse, France

[5] CNRS, Lab Photon & Nanostruct, F-91460 Marcoussis, France

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 14期

关键词：

RELAXATION;

D O I：

10.1103/PhysRevLett.102.146601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the carrier spin dynamics in p-doped InAs/GaAs quantum dots by pump-probe and time-resolved photoluminescence experiments. We obtained experimental evidence of the hyperfine interaction between hole and nuclear spins. In the absence of an external magnetic field, our calculations based on dipole-dipole coupling between the hole and the quantum dot nuclei lead to a hole-spin dephasing time for an ensemble of dots of 14 ns, in close agreement with experiments.

引用

页数：4

共 32 条

[1]

ABRAGAM A, 1973, PRINCIPLES NUCL MAGN, P172

[2] EXCITON FORMATION AND HOLE-SPIN RELAXATION IN INTRINSIC QUANTUM-WELLS [J].