Low Temperature Physics: 38, 1001 (2012); https://doi.org/10.1063/1.4765090 (4 pages)
Fizika Nizkikh Temperatur: Volume 38, Number 11 (November 2012), p. 1269-1273    ( to contents , go back )

Charged particles over liquid helium

A.M. Dyugaev1,3, P.D. Grigoriev1, and E.V. Lebedeva2

1Landau Institute for Theoretical Physics, Akademika Semenova av., 1-A , Chernogolovka, 142432, Russia
E-mail: dugaev@itp.ac.ru
pasha@itp.ac.ru

2Institute of Solid State Physics RAS, Chernogolovka, Moscow district 142432, Russian Federation
E-mail: lebedeva@issp.ac.ru

3Max-Plank-Institut for the Physics of Complex Systems, Dresden D-01187, Germany
pos Анотація:

Received Jule 3, 2012

Abstract

The analysis of dusty plasma properties at cryogenic temperatures shows that it is necessary to take into account the condensation of helium on the plasma particles. The micron particles in the saturated helium vapor are covered by a liquid helium film of 100 Å thick. This leads to the limitation of electron charge of the particles, as the electrons can hardly penetrate such a film. The exceptions are Cs, Rb and K clusters as they are not wetted with helium.

PACS: 67.60.G– Solutions of 3He in liquid 4He;
PACS: 52.27.Lw Dusty or complex plasmas; plasma crystals;
PACS: 52.80.–s Electric discharges;
PACS: 34.70.+e Charge transfer.

Key words: low temperatures, dusty plasma, liquid helium

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