Temperature dependence of the coupled electron-ripplon resonance spectrum of electron crystal over liquid helium

被引：0
|
作者：
Syvokon, VE [1 ]
Kireyev, YV [1 ]
机构：
[1] Natl Acad Sci Ukraine, BI Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2005年 / 120卷 / 1-3期
关键词：
He-4 liquid surface; surface electrons; Wigner solid;
D O I：
10.1016/j.molliq.2004.07.067
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Spectra of coupled electron-ripplon oscillation of two-dimensional (2D) Wigner crystal with the surface electron density n(s)=6.4 x 10(8) cm(-2) (melting temperature of 0.58 K) are measured under conditions of both complete and noncomplete screening of the holding electric field in temperature range 0.08-0.4 K. The frequencies of the resonances are compared with the results of calculation in the frameworks of a self-consistent theory by Monarkha and Shikin. It is shown that the amplitude of the (0,1) resonance mode tends to 0 as temperature reaches the melting temperature. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：193 / 195
页数：3
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