Neutron investigation of collective excitations in liquid K-Cs alloys: The role of the electron density

被引：42

作者：

Bove, LE ^{[1
]}

Sacchetti, F

Petrillo, C

Dorner, B

机构：

[1] Unita Perugia, INFM, Perugia, Italy

[2] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy

[3] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy

[4] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.85.5352

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The investigation of the ion dynamics in the liquid alloy K52Cs48. which has the same electron density as Rb, was carried out by neutron inelastic scattering. Well defined collective excitations were observed up to the maximum value of momentum transfer of the experiment. A scaling of the dispersion relation data was found to hold between K-Cs alloys, Rb and Cs. The suggested scaring points out the key role of the conduction electron density in the collective dynamics of alkali metals.

引用

页码：5352 / 5355

页数：4

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