Nonlinear transport properties of atomic copper point contacts

Autor:	Strohmeier, Marcel, Kirchberger, Kim, Scheer, Elke
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	Electronic transport Electromigration Break junction Junction resistance Transport properties Phonons ddc:530 Point contacts Transition metals Conductance fluctuations Atomic structure
Popis:	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. published
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=od_______715::5de3e4a497546538d84ea6c12f31369a Zobrazit plný text záznamu