Open AccessВлияние контактной разности потенциалов на вольт-амперные характеристики в сканирующей туннельной спектроскопии
Author(s) -
М.В. Кузьмин,
М.А. Митцев
Publication year - 2021
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2021.11.51542.91-21
Subject(s) - materials science , monolayer , ytterbium , conductivity , quantum tunnelling , volta potential , spectroscopy , work (physics) , analytical chemistry (journal) , scanning tunneling microscope , spectral line , condensed matter physics , work function , chemistry , nanotechnology , optoelectronics , physics , thermodynamics , layer (electronics) , quantum mechanics , doping , chromatography
Using the energy diagrams of asymmetric potential barriers formed at the contact of two metals with different work functions, the influence of contact potential difference on the current-voltage characteristics and differential conductivity spectra measured by scanning tunneling spectroscopy is considered. It is shown that the obtained conclusions are in qualitative agreement with the experimental results for ytterbium nanofilms with the thickness of 16 monolayers (6.08 nm). However, they significantly differ quantitatively. The analysis of such diffrences is performed.