SHEAR MODES IN 2D ION CRYSTALS TRAPPED BELOW THE SURFACE OF SUPERFLUID-HELIUM

Authors
ELLIOTT PL LEVCHENKO AA PAKES CI SKRBEK L VINEN WF
Citation
Pl. Elliott et al., SHEAR MODES IN 2D ION CRYSTALS TRAPPED BELOW THE SURFACE OF SUPERFLUID-HELIUM, Surface science, 362(1-3), 1996, pp. 843-846
Citations number
10
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
362
Issue
1-3
Year of publication
1996
Pages
843 - 846
Database
ISI
SICI code
0039-6028(1996)362:1-3<843:SMI2IC>2.0.ZU;2-C
Abstract
An experimental study is reported of shear modes in the crystal phase of a circular 2D pool of charged ions trapped just below the free surf ace of superfluid 4He. The frequencies of the modes are in good agreem ent with theory. Preliminary studies of the damping of the modes, the temperature dependence of the mode frequencies, and the effect on the modes of damage to the crystal are included.