Relation between the chemical force and the tunnelling current in atomic point contacts: a simple model
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00377181" target="_blank" >RIV/68378271:_____/12:00377181 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0953-8984/24/8/084001" target="_blank" >http://dx.doi.org/10.1088/0953-8984/24/8/084001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0953-8984/24/8/084001" target="_blank" >10.1088/0953-8984/24/8/084001</a>
Alternative languages
Result language
angličtina
Original language name
Relation between the chemical force and the tunnelling current in atomic point contacts: a simple model
Original language description
The relation between the tunnelling current and the interaction energy (or force) in an atomic-scale contact is discussed in the framework of a theoretical model established here. According to our model, we predict the existence of two characteristic scaling regimes, where the tunnelling current is either proportional to the interaction energy or to the square of the interaction energy. We show that the existence of a given regime is basically controlled by two parameters: (i) the degeneracy parameter that gives the energy separation of electron levels involved in the interaction and (ii) the hopping parameter between these electron levels. In addition, we discuss the validity of the Bardeen method to determine the tunnelling current for short tip-sample distances.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physics-Condensed Matter
ISSN
0953-8984
e-ISSN
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Volume of the periodical
24
Issue of the periodical within the volume
8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
1-10
UT code for WoS article
000300585900004
EID of the result in the Scopus database
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