论文标题
磁场中的门控二维电子气体:非线性与线性状态
Gated two-dimensional electron gas in magnetic field: nonlinear versus linear regimes
论文作者
论文摘要
我们研究磁场对具有霍尔杆几何形状的田间效应晶体管中高迁移率二维电子气体的性能的影响。当通道的排水侧大量耗尽时接近当前饱和度时,我们看到与磁场引起的电气密度在电导通道中的重新分布相关的许多异常效应。在非线性制度中获得的实验结果已经根据线性制度在线性方案中获得的结果来解释,这是一个简单的理论模型,该模型很好地描述了我们的观察结果。
We study the effect of magnetic field on the properties of a high mobility gated two-dimensional electron gas in a field effect transistor with the Hall bar geometry. When approaching the current saturation when the drain side of the channel becomes strongly depleted, we see a number of unusual effects related to the magnetic field induced re-distribution of the electron density in the conducting channel. The experimental results obtained in the non-linear regime have been interpreted based on the results obtained in the linear regime by a simple theoretical model, which describes quite well our observations.