A monochromatized multiple energy laboratory UV source for k-space imaging

被引：26

作者：

Pillo, T ^{[1
]}

Patthey, L ^{[1
]}

Boschung, E ^{[1
]}

Hayoz, J ^{[1
]}

Aebi, P ^{[1
]}

Schlapbach, L ^{[1
]}

机构：

[1] Univ Fribourg, Inst Phys, CH-1700 Fribourg, Switzerland

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 1998年 / 97卷 / 03期

关键词：

angle-resolved photoemission; Fermi surface mapping; monochromatized UV radiation; k-space mapping; duoplasmatron;

D O I：

10.1016/S0368-2048(98)00304-1

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A laboratory set-up for ultraviolet (UV) photoelectron spectroscopy combining a high intensity UV source and a toroidal UV monochromator, both being commercially available, is described. The source is modified in order to maximize the solid angle collected by the monochromator. Scanning its exit arm length allows for the optimization of the photon intensity as well as the energy resolution by minimizing the defocus term only. By using several different gases such as He, Ne or H-2 one obtains a powerful tool to sample extended regions in k-space. Fermi energy maps are presented for Cu(110) in the photon energy range from 10.2 to 48.3 eV. As a result of the variable photon energy an actual zooming into the well-known Shockley surface state is possible. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：243 / 252

页数：10

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