Spin-Orbit Coupling, Antilocalization, and Parallel Magnetic Fields in Quantum Dots
介观与纳米尺度物理
2009-11-07 v2 材料科学
摘要
We investigate antilocalization due to spin-orbit coupling in ballistic GaAs quantum dots. Antilocalization that is prominent in large dots is suppressed in small dots, as anticipated theoretically. Parallel magnetic fields suppress both antilocalization and also, at larger fields, weak localization, consistent with random matrix theory results once orbital coupling of the parallel field is included. In situ control of spin-orbit coupling in dots is demonstrated as a gate-controlled crossover from weak localization to antilocalization.
引用
@article{arxiv.cond-mat/0208436,
title = {Spin-Orbit Coupling, Antilocalization, and Parallel Magnetic Fields in Quantum Dots},
author = {D. M. Zumbuhl and J. B. Miller and C. M. Marcus and K. Campman and A. C. Gossard},
journal= {arXiv preprint arXiv:cond-mat/0208436},
year = {2009}
}
备注
related papers at http://marcuslab.harvard.edu