Signature of atomic structure in the quantum conductance of gold nanowires

Autor(es)

Rodrigues‚ V. ; Fuhrer‚ T. ; Ugarte‚ D.

• Tipo de documento: Artigo Científico
• Fonte: Physical Review Letters; v. 85, n. 19, p. 4124-4127, 2000.

Resumo

We have used high resolution transmission electron microscopy to determine the structure of gold nanowires generated by mechanical stretching. Just before rupture, the contacts adopt only three possible atomic configurations, whose occurrence probabilities and quantized conductance were subsequently estimated. These predictions have shown a remarkable agreement with conductance measurements from a break junction operating in ultrahigh vacuum, corroborating the derived correlation between nanowire atomic structure and conductance behavior. (AU)

• Processo FAPESP: 98/13501-6 - Quantum conductance in metallic nanostructures
• Beneficiário: Varlei Rodrigues
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 96/12546-0 - Conductance quantization in metallic nanostructures
• Beneficiário: Daniel Mario Ugarte
• Modalidade de apoio: Auxílio à Pesquisa - Regular