SURFACE ELECTRONIC, CHEMICAL AND MORPHOLOGICAL PROPERTIES OF METAL POWDERS

被引：5
作者：
KWETKUS, BA
SATTLER, K
机构：
[1] SWISS FED INST TECHNOL,SOLID STATE PHYS LAB,CH-8093 ZURICH,SWITZERLAND
[2] UNIV HAWAII MANOA,DEPT PHYS & ASTRON,HONOLULU,HI 96822
来源：
SURFACE SCIENCE | 1992年 / 275卷 / 03期
关键词：
D O I：
10.1016/0039-6028(92)90794-7
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：
We studied oxidized metal powders (Al, Ti, Nb, Ni, Ag, Cr, La) by means of different experimental techniques using scanning tunneling microscopy (STM), scanning tunneling spectroscopy (STS) and X-ray photoelectron spectroscopy (XPS). The STM images show surface roughness of the powder particles in a nanometer scale range. Stable rectifying behavior was observed for most I-V-curves in STS. XPS revealed thick oxide layers on most of the particle surfaces. The main compound of the lanthanum powder surface was LA(OH)3. No STM images and no STS measurements could be obtained from the lanthanum powder sample. Silver powder revealed exceptional behavior in the XPS and the STS measurements.
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页码：201 / 208
页数：8
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