Nonlinear transport properties of atomic copper point contacts

被引：1

作者：

Strohmeier, Marcel ^{[1
]}

Kirchberger, Kim ^{[1
]}

Scheer, Elke ^{[1
]}

机构：

[1] Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany

来源：

LOW TEMPERATURE PHYSICS | 2023年 / 49卷 / 07期

关键词：

point-contact spectroscopy; atomic contact; break junction; electronic transport; copper; METALLIC CONTACTS; CONDUCTANCE; SPECTROSCOPY; CONSTRICTIONS; QUANTIZATION; DEPENDENCE; TRANSITION; SIGNATURE; NOBLE;

D O I：

10.1063/10.0019693

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report studies on the nonlinear electronic transport properties of copper point contacts. Utilizing the mechanically controllable break junction technique, various contact sizes can be realized to study ensemble-averaged differential conductance spectra at low temperatures. We investigate signatures of phonon excitations for contact sizes down to the atomic scale, where conductance fluctuations arise superimposing the phonon signatures. Applying high bias voltages to atomic-size copper contacts reveal additional features caused by atomic rearrangements.

引用

页码：827 / 833

页数：7

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