论文标题
氦表面上空间调制的电子液体的迁移率
Mobility of a spatially modulated electron liquid on the helium surface
论文作者
论文摘要
我们介绍了在一维周期电势存在下，二维电子液体在氦表面上的迁移率的大规模数值模拟的结果。即使电势比电子电子相互作用弱得多，也可以强烈改变迁移率。该效果取决于潜在周期和平均电子距离之间的相互关系。如果将液体冷却至较低的温度，则最明显的是，该周期接近Wigner晶体的周期。结果特别表明，可以通过测量弱周期性潜力中的迁移率来找到电子液体中的相关长度。这些模拟基于通过氦气激发的电子散射的显微镜模型。
We present the results of large-scale numerical simulations of the mobility of a two-dimensional electron liquid on the helium surface in the presence of a one-dimensional periodic potential. Even where the potential is much weaker than the electron-electron interaction, it can strongly change the mobility. The effect depends on the interrelation between the potential period and the mean interelectron distance. It is most pronounced where the period is close to the period of the Wigner crystal that would form if the liquid were cooled to a lower temperature. The results suggest, in particular, that the correlation length in the electron liquid can be found by measuring the mobility in a weak periodic potential. The simulations are based on the microscopic model of the electron scattering by the excitations in helium.
