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Mobility of electrons in the surface state of liquid helium

โœ Scribed by Yasuhiro Iye

Publisher
Springer US
Year
1980
Tongue
English
Weight
403 KB
Volume
40
Category
Article
ISSN
0022-2291

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โœฆ Synopsis

The response of a sheet of electrons on the surface of liquid helium to an ac driving fieM parallel to the surface is investigated. A Corbino-type electrode arrangement is used to study the influence of a vertical magnetic field. The surface electron mobility is deduced from the observed temperature and magnetic field dependences of the ac response, by means of a simplified equivalent circuit analysis. The mobility data thus obtained show the ripplonlimited behavior at low temperature and are in reasonable agreement with the previous experimental result of Grimes and Adams and with the theoretical calculation of Saitoh. A similar measurement carried out on the surface of 3He has revealed that the mobility is determined by the gas atom scattering down to the lowest temperature (~ 0.5 K) of the present study.

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Mobility of electrons along the liquid helium surface in strong retarding electric fields
โœ A. S. Rybalko; Yu. Z. Kovdrya ๐Ÿ“‚ Article ๐Ÿ“… 1975 ๐Ÿ› Springer US ๐ŸŒ English โš– 602 KB

We measured the t'elocity of electrons moving in helium vapor along the liquid-vapor interface in electric .fields which were weak in the direction parallel to the surface and strong in the direction perpendicular to the surface. It is shown that in the 1.4-2.0 K range in applying retarding Jields u