强关联双层电子系统中量子化霍尔拖拽的观测
Observation of quantized Hall drag in a strongly correlated bilayer electron system.
作者信息
Kellogg M, Spielman I B, Eisenstein J P, Pfeiffer L N, West K W
机构信息
California Institute of Technology, Pasadena, California 91125, USA.
出版信息
Phys Rev Lett. 2002 Mar 25;88(12):126804. doi: 10.1103/PhysRevLett.88.126804. Epub 2002 Mar 8.
Abstract
The frictional drag between parallel two-dimensional electron systems has been measured in a regime of strong interlayer correlations. When the bilayer system enters the excitonic quantized Hall state at total Landau level filling factor nu(T) = 1, the longitudinal component of the drag vanishes but a strong Hall component develops. The Hall drag resistance is observed to be accurately quantized at h/e(2).
摘要
在强层间关联区域测量了平行二维电子系统之间的摩擦阻力。当双层系统在总朗道能级填充因子ν(T)=1时进入激子量子化霍尔态时，阻力的纵向分量消失，但会出现很强的霍尔分量。观察到霍尔阻力精确地量子化为h/e² 。
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