2D electrons;
electron pressure;
suspended helium films;
D O I:
10.1016/S0921-4526(99)02290-5
中图分类号:
O469 [凝聚态物理学];
学科分类号:
070205 ;
摘要:
(Quasi-) one- and zero-dimensional electron systems can be created using a suspended helium film on a structured substrate. To investigate the relation between the curved surface and the properties of the electron system, the suspended helium film profile in a quasi-one-dimensional channel is measured interferometrically. It is shown that the film thickness decreases when the surface is charged with electrons at a density > 10(9) cm(-2). (C) 2000 Elsevier Science B.V. All rights reserved.