A COMPUTER-CONTROLLED TECHNIQUE FOR ELECTROCHEMICAL STM TIP FABRICATION

被引：16

作者：

FAINCHTEIN, R

ZARRIELLO, PR

机构：

[1] Applied Physics Laboratory, Johns Hopkins University, Laurel

来源：

ULTRAMICROSCOPY | 1992年 / 42卷

关键词：

D O I：

10.1016/0304-3991(92)90478-3

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

We present a novel technique developed in our laboratory for the fabrication of sharp tips for scanning tunneling microscopy. A computer-controlled mechanism is implemented for positioning the wire to be etched at the electrolyte/air interface. The tips are fabricated by AC electrochemical etching in solutions of KCN for Pt-Ir tips or KOH for tungsten tips. By monitoring the etching current with the computer we designed a simple algorithm that provides automated controllable etching conditions.

引用

页码：1533 / 1537

页数：5