Publication
Title
Novel methods to create multielectron bubbles in superfluid helium
Author
Abstract
An equilibrium multielectron bubble (MEB) in liquid helium is a fascinating object with a spherical two-dimensional electron gas on its surface. We discuss two ways in which they have been created. For MEBs that have been observed in the dome of a cylindrical cell with an unexpectedly short lifetime, we show analytically why these MEBs can discharge by tunneling. Using a novel method, MEBs have been extracted from a vapor sheath around a hot filament in superfluid helium by applying electric fields up to 15 kV/cm, and photographed with high-speed video. Charges as high as 1.6×10−9 C (∼1010 electrons) have been measured. The latter method provides a means of capture in an electromagnetic trap to allow the study of the extensive exciting properties of these elusive objects.
Language
English
Source (journal)
The review of scientific instruments. - New York, N.Y.
Publication
New York, N.Y. : 2011
ISSN
0034-6748
Volume/pages
82:3(2011), p. 033904,1-033904,7
Article Reference
033904
ISI
000289149600051
Medium
E-only publicatie
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 09.03.2011
Last edited 04.11.2017
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