论文标题
在三端微通道设备中的单向河流电荷传输
Unidirectional ripplopolaron charge transport in a three-terminal microchannel device
论文作者
论文摘要
我们研究了超流体氦气上的表面电子通过微通道结构的运输，在该结构中，电荷流分成两个分支，一个流动直，一个在90度下转动。根据欧姆法律，应有相等数量的费用流入每个分支。但是，当电子被表面激发（瑞普龙）打扮成形成具有足够大有效质量的二极管样颗粒时，由于动量保护，所有电荷都遵循直径。这种表面波诱导的转运类似于半导体2DEG中耦合到表面声波的电子的运动。
We study the transport of surface electrons on superfluid helium through a microchannel structure in which the charge flow splits into two branches, one flowing straight and one turned at 90 degrees. According to Ohm law, an equal number of charges should flow into each branch. However, when the electrons are dressed by surface excitations (ripplons) to form polaron-like particles with sufficiently large effective mass, all the charge follows the straight path due to momentum conservation. This surface-wave induced transport is analogous to the motion of electrons coupled to surface acoustic waves in semiconductor 2DEGs.
