PHONON-RIPPLON RESONANCES IN 2-DIMENSIONA L ELECTRON CRYSTAL OVER LIQUID-HELIUM

Authors
SIVOKON VE KOVDRYA YZ GRIGOREV VN
Citation
Ve. Sivokon et al., PHONON-RIPPLON RESONANCES IN 2-DIMENSIONA L ELECTRON CRYSTAL OVER LIQUID-HELIUM, Fizika nizkih temperatur, 22(10), 1996, pp. 1107-1112
Citations number
19
Categorie Soggetti
Physics, Applied
Journal title
Fizika nizkih temperatur → ACNP
ISSN journal
01326414
Volume
22
Issue
10
Year of publication
1996
Pages
1107 - 1112
Database
ISI
SICI code
0132-6414(1996)22:10<1107:PRI2LE>2.0.ZU;2-D
Abstract
Electron-ripplon oscillations in Wigner crystal with charge density 1, 3 . 10(9) cm(-2) over liquid helium were cM studied in the temperature range 70-600 mK at frequencies 1-20 MHz. Frequency and linewidths of the resonances due to excitation of the phonon-ripplon modes are measu red. The temperature dependence of resonant frequency is in a good agr eement with the theoretical one.