INVERSE PHOTOEMISSION-STUDY OF THE EARLY STAGES OF POLYCRYSTALLINE IRON OXIDATION

被引：7

作者：

CICCACCI, F

DUO, L

PUPPIN, E

机构：

[1] Istituto di Fisica, Politecnico di Milano, I-20133 Milano

来源：

SURFACE SCIENCE | 1992年 / 269卷

关键词：

D O I：

10.1016/0039-6028(92)91304-T

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：

We present an inverse photoemission (IP) study of polycrystalline Fe oxidation performed at room temperature in the exposure range from 1 to 10(3) langmuir (1 L = 10(-6) Torr.s). The spectra have been taken in the isochromat mode in the ultraviolet photon energy range from 10.5 to 24 eV. In this region the empty 3d states give rise to a sharp and well defined feature which moves away from the Fermi level on going from the clean metal to the oxidized system. This effect saturates at an exposure of about 5 L. The data are compared with recent IP results from the complete family of Fe bulk oxides.

引用

页码：533 / 537

页数：5

共 21 条

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