Surface plasmons in NiGa and CoGa alloys

被引：5

作者：

Leiro, JA

Heinonen, MH

机构：

[1] Department of Applied Physics, University of Turku

来源：

SURFACE SCIENCE | 1996年 / 346卷 / 1-3期

关键词：

gallium; plasmons; polycrystalline surfaces; X-ray photoelectron spectroscopy;

D O I：

10.1016/0039-6028(95)00916-7

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：

Electron energy losses at the surface of Ga, NiGa and CoGa have been studied by X-ray photoemission spectroscopy (XPS). These features are interpreted as being due to surface plasmons. For Ga metal the experimental result is in good agreement with the surface plasmon energy obtained by a free-electron model. At the surface of Coca and NiCa alloys, the corresponding energy is about 1 eV higher than that of pure Ga metal. This result is discussed in the framework of a free-electron model as well.

引用

页码：73 / 78

页数：6

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