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Ballistic resistivity in aluminum nanocontacts

AuthorsHasmy, A.; Pérez-Jiménez, A. J.; Palacios, J. J.; García-Mochales, Pedro ; Costa Krämer, José Luis ; Díaz Muñoz, Marcos ; Medina Dagger, Ernesto; Serena, Pedro A.
KeywordsAluminum nanocontacts
Quantum conductance
Ballistic resistivity
Issue Date5-Dec-2005
PublisherAmerican Physical Society
CitationPhysical Review B 72, 245405 (2005)
AbstractWe perform a representative series of semiclassical molecular dynamics simulations of aluminum nanocontact breakages, coupled to full quantum conductance calculations. This approach allows to obtain realistic conductance histograms of polyvalent species and understand the origin of their peaked structures. The results show that the conductance depends linearly on the contact minimum cross section for the geometrically favored nanocontact configurations. Valid in a broad range of conductance values, such relation suggests the definition of a transport parameter for the nanoscale, that represents the novel concept of ballistic resistivity.
Publisher version (URL)http://link.aps.org/doi/10.1103/PhysRevB.72.245405
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