Formation of a metallic contact: jump to contact revisited.
Phys Rev Lett
; 98(20): 206801, 2007 May 18.
Article
em En
| MEDLINE
| ID: mdl-17677725
ABSTRACT
The transition from tunneling to metallic contact between two surfaces does not always involve a jump, but can be smooth. We have observed that the configuration and material composition of the electrodes before contact largely determine the presence or absence of a jump. Moreover, when jumps are found preferential values of conductance have been identified. Through a combination of experiments, molecular dynamics, and first-principles transport calculations these conductance values are identified with atomic contacts of either monomers, dimers, or double-bond contacts.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Espanha