LATERAL, NORMAL, AND LONGITUDINAL SPRING CONSTANTS OF ATOMIC-FORCE MICROSCOPY CANTILEVERS

被引：245

作者：

NEUMEISTER, JM ^{[1
]}

DUCKER, WA ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT CHEM & NUCL ENGN,SANTA BARBARA,CA 93106

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1994年 / 65卷 / 08期

关键词：

D O I：

10.1063/1.1144646

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

For a V-shaped atomic force microscopy cantilever beam, the spring constants in the three principal directions are given in terms of the beam geometry and material properties. For the lateral stiffness, a closed-formed expression is presented. Also, the normal and the longitudinal stiffness are obtained from a few simple equations. The results are compared with a finite element study and found to be very accurate. All spring constants depend strongly on the cantilever thickness, which is difficult to measure. In addition, the lateral and longitudinal stiffness are sensitive to the location and the height of the attached pyramid.

引用

页码：2527 / 2531

页数：5

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