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

页码：193 / 195

页数：3

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