Magnetic field dependence of triplet-singlet relaxation in quantum dots with spin-orbit coupling

Juan I. Climente; Andrea Bertoni; Guido Goldoni; Massimo Rontani; Elisa Molinari

首页> 外文期刊>Physical review. B, Condensed Matter And Materials Physics >Magnetic field dependence of triplet-singlet relaxation in quantum dots with spin-orbit coupling

【24h】

Magnetic field dependence of triplet-singlet relaxation in quantum dots with spin-orbit coupling

机译：自旋-轨道耦合量子点中三重态-单态弛豫的磁场依赖性

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

We estimate the triplet-singlet relaxation time due to spin-orbit coupling assisted by phonon emission in weakly confined quantum dots. Calculations are performed taking into account Coulomb and spin-orbit interactions exactly within the full configuration interaction method, and Fermi golden rule. Our results for two and four electrons show that different triplet-singlet relaxation trends observed in recent experiments under magnetic fields can be understood within a unified theoretical description, as the result of the competition between spin-orbit coupling and phonon emission efficiency. Moreover, we show that properly designed QD structures may give access to very long-lived triplet states as well as to selective population of the triplet Zeeman sublevels.

机译：我们估计由于弱约束量子点中的声子发射辅助的自旋轨道耦合而导致的三重态-单态弛豫时间。在完全配置相互作用方法和费米黄金定律的范围内，完全考虑了库仑和自旋轨道的相互作用来进行计算。我们对两个和四个电子的结果表明，由于自旋轨道耦合和声子发射效率之间的竞争，在统一的理论描述中可以理解最近在磁场下的实验中观察到的不同的三重态-单态弛豫趋势。此外，我们表明，正确设计的QD结构可以访问寿命很长的三重态以及三重态Zeeman子级的选择性种群。

著录项

来源
《Physical review. B, Condensed Matter And Materials Physics》 |2007年第8期|p.081303.1-081303.4|共4页
作者
Juan I. Climente; Andrea Bertoni; Guido Goldoni; Massimo Rontani; Elisa Molinari;
展开▼
作者单位

CNR-INFM S3, Via Campi 213/A, 41100 Modena, Italy;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
quantum dots; spin-orbit coupling; zeeman and stark splitting; jahn-teller effect; scattering by phonons; magnons; and other nonlocalized excitations; collective excitations;

机译：量子点;自旋轨道耦合;塞曼和斯塔克分裂;简-泰勒效应;声子散射;马农和其他非局部激发;集体激发;

相似文献

外文文献
中文文献
专利

1. Spin-orbit coupling and magnetic-field dependence of carrier states in a self-assembled quantum dot [J] . Krzysztof Gawarecki Physical review. B, Condensed Matter And Materials Physics . 2018,第23期

机译：自组装量子点中载流子态的自旋轨道耦合和磁场依赖性
2. Spin-orbit coupling and magnetic-field dependence of carrier states in a self-assembled quantum dot [J] . Gawarecki Krzysztof Physical review, B . 2018,第23期

机译：旋转轨道耦合和载体状态在自组装量子点中的磁场依赖性
3. Rashba and Dresselhaus spin-orbit couplings effects on electromagnetically induced transparency of a lens-shaped quantum dot: External electric and magnetic fields [J] . A. Zamani, F. Setareh, T. Azargoshasb, Superlattices and microstructures . 2017,第JUNa期

机译：Rashba和Dresselhaus自旋轨道耦合对透镜形量子点的电磁感应透明度的影响：外部电场和磁场
4. Spin relaxation of excitons in nonmagnetic quantum dots: Effect of spin coupling to magnetic semiconductor quantum dots [C] . S. Lee, M. Dobrowolska, J. K. Furdyna Annual Conference on Magnetism and Magnetic Materials . 2005

机译：非磁性量子点的激子旋转松弛：自旋耦合与磁半导体量子点的效果
5. Pumping and spin-orbit coupling in quantum dots. [D] . Cremers, Jacob Nico Hendrik Jan (Jan-Hein). 2003

机译：量子点中的泵浦和自旋轨道耦合。
6. Unique Spin Vortices and Topological Charges in Quantum Dots with Spin-orbit Couplings [O] . Wenchen Luo, Amin Naseri, Jesko Sirker, -1

机译：自旋轨道耦合的量子点中的独特自旋涡旋和拓扑电荷
7. Triplet-Singlet Spin Relaxation in Quantum Dots with Spin-Orbit Coupling [O] . Climente, Juan I., Bertoni, Andrea, Goldoni, Guido, 2006

机译：自旋轨道耦合量子点中的三重单重自旋弛豫
8. R-Dependence of the Spin-Orbit Coupling Constant: Potential Energy Functions of Xe2+ by High-Resolution Photoelectron Spectroscopy and ab initio Quantum Chemistry; Journal article [R] . Zehnder, O., Mastalerz, R., Reiher, M., 2008

机译：自旋轨道耦合常数的R依赖性：高分辨率光电子能谱和从头量子化学的Xe2 +的势能函数;杂志文章

Magnetic field dependence of triplet-singlet relaxation in quantum dots with spin-orbit coupling

摘要

著录项

相似文献

相关主题

期刊订阅