全满壳层数2下量子霍尔系统双层的滞回行为与团簇形成证据
介观与纳米尺度物理
2007-05-23 v2
摘要
We report anomalous behavior in a double-layer two dimensional hole gas (2DHG) at even integer filling factors which includes hysteresis in the longitudinal and Hall resistances and a very weak temperature dependence of the resistance minima. All anomalies disappear and the conventional quantum Hall effect behavior recovers when a thin metal film is placed on top of the 2DHG. The behavior is attributed to presence of the theoretically predicted magnetic ordering at even integer filling factors which causes the formation of macroscopic spin-charge domains.
引用
@article{arxiv.cond-mat/9804256,
title = {Hysteretic behavior and evidence for domain formation in a double-layer quantum Hall system at total filling factor 2},
author = {J. G. S. Lok and A. K. Geim and B. Tieke and J. C. Maan and S. T. Stoddart and R. J. Hyndman and B. L. Gallagher and M. Henini},
journal= {arXiv preprint arXiv:cond-mat/9804256},
year = {2007}
}
备注
3 pages, 4 figures, uses rotating, uses epsfig