准一维条件下电势变化对氦表面电子自定域的影响
Influence of the variations of potential on autolocalization of the surface electrons over helium in the conditions of quasi - one-dimensionality
摘要：
电子与中性物质相互作用的特点引起了物理学家多方面的关注。交换相互作用特别导致气泡的产生-电子在中心的球形空腔。小介电常数电介质表面形成的表面电子系统是这类研究的好对象。由于体系非常清晰，易于控制，因此对SE在液氦表面的自定域研究引起了人们的高度重视。气泡相对于自由电子具有小的迁移率，并且其用于监测过渡过程。正如最近已经研究的准一维电子在液氦形成的自定域态在较小的气体密度相比，3D和2D的情况。该工艺在很大程度上取决于基板及其质量。本文研究了一维电子在液氦衬底上的自定域问题。作者用电子自定域出现或消失时子系统能量变化的动态过程和电子子系统与恒温器的绝热来解释电位变化时电导率的特征。
英文摘要：
The feature of interaction electrons with neutral matter attracts large attention of physicists many directions. The exchange interaction in particular leads to creating of bubbles - spherical cavities with electron in center. Good object for such study is system of surface electrons formed over surface of dielectric with small permittivity. Investigation of the autolocalization of SE on liquid helium surface attracts high attention, because system is the extremely clear and easily governed. Bubbles have small mobility relatively of free electrons and that is used for monitoring of the transition process. As has recently been investigated the quasi-one-dimensional electrons over liquid helium form the autolocalized states at smaller gas density in compared to 3D and 2D situations. The process significantly depends from a substrate and its quality. The autolocalization of one-dimensional electrons in a gas phase over liquid helium covering a substrate at both situations with or without the potential variations is theme of present study. The features of conductivity in presence of potential variations the authors explain by both the dynamic processes of changing the subsystem energy at appear or disappear electron autolocalization and by thermo-insulation of electron subsystem from thermostat.
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