Calibration of the distance between electrodes of mechanically controlled break junctions using field emission resonance

被引：22

作者：

Kolesnychenko, OY ^{[1
]}

Shklyarevskii, OI ^{[1
]}

van Kempen, H ^{[1
]}

机构：

[1] Catholic Univ Nijmegen, Mat Res Inst, NL-6525 ED Nijmegen, Netherlands

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1999年 / 70卷 / 02期

关键词：

D O I：

10.1063/1.1149602

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This article presents an accurate method for calibration of the relative displacement Delta z of mechanically controllable break junction electrodes and determination of the metal work function phi using oscillating behavior of tunnel conductance (known also as a Gundlach oscillation) in a field emission region. The precision of the proposed method is at least one order of magnitude better than the most reasonable estimations that have previously been possible. In combination with tunnel current-distance dependence I(z) measurements, the absolute vacuum gap can be evaluated with an accuracy +/-0.25 Angstrom. (C) 1999 American Institute of Physics. [S0034-6748(99)05502-1].

引用

页码：1442 / 1446

页数：5

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