VANDERWAALS FORCES IN ATOMIC FORCE MICROSCOPY OPERATING IN LIQUIDS - A SPHERICAL-TIP MODEL

被引：24
|
作者：
GARCIA, N
BINH, VT
机构：
[1] FISINTEC, E-28100 MADRID, SPAIN
[2] UNIV LYON 1, DEPT PHYS MAT, F-69622 VILLEURBANNE, FRANCE
来源：
PHYSICAL REVIEW B | 1992年 / 46卷 / 12期
关键词：
D O I：
10.1103/PhysRevB.46.7946
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper we discuss the van der Waals forces in atomic force microscopy when operating in liquids. We show that these forces are almost cancelled out for spherical tips immersed in liquids and seem to be in agreement with recent in situ electrochemistry results. Experiments as well as an analogy with Archimedes's principle are proposed. Furthermore, we present experiments showing such spherical tips of hundred nanometers which can be fabricated in a reproducible manner and are stable.
引用
收藏
页码：7946 / 7948
页数：3
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