TEMPERATURE-DEPENDENCE OF THE OPTICAL-RESPONSE OF SMALL SODIUM CLUSTERS

被引：18

作者：

BULGAC, A

LEWENKOPF, C

机构：

[1] Department of Physics, University of Washington, Seattle, WA

[2] Instituto de Ffsica, Universidade de So Paulo, So Paulo, 01498

来源：

EUROPHYSICS LETTERS | 1995年 / 31卷 / 09期

关键词：

D O I：

10.1209/0295-5075/31/9/003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an analysis of the temperature dependence of the optical response of small sodium clusters in a temperature range bracketing the melting phase transition. When the temperature increases, the mean excitation energy undergoes a red-shift and the plasmon is significantly broadened, in agreement with recent experimental data. Due to large thermal size and shape fluctuations the single-particle levels acquire a prominent width. We also predict a sharp increase of the static polarizability with temperature.

引用

页码：519 / 524

页数：6

共 27 条

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