Mobility of electrons along the liquid helium surface in strong retarding electric fields

✍ Scribed by A. S. Rybalko; Yu. Z. Kovdrya

• Publisher: Springer US
• Year: 1975
• Tongue: English
• Weight: 602 KB
• Volume: 18
• Category: Article
• ISSN: 0022-2291
• DOI: 10.1007/bf00118154

✦ Synopsis

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 up to 8000 V/cm, when the electron density is sufficiently large, there is et'idence for the existence of slower electrons as compared to those whose mobility is controlled by collisions with He atoms in the vapor phase. The mobility of these slower electrons is relatively temperature independent and decreases with growing electron density and retarding electric field.