Interband scattering at metallic nano-junctions

K. Ueno, Mikio Eto, K. Kawamura

Research output: Contribution to journalArticle

Abstract

Interband scattering effect is examined on the electron transport through nano-scale break-junctions of transition metals. Numerical calculations are performed using multi-band tight-binding models. In a model with broad and narrow s bands, the conductance is almost quantized in units of 2e2/h, as in the case of single band. In another model with broad s and narrow p bands, the situation is completely different: the conductance is substantially suppressed by the interband scattering. Based on the calculated results, we suggest a possible mechanism for the conductance quantization in units of e2/h for Ni which has 4s and 3d bands at the Fermi level.

Original languageEnglish
Pages (from-to)684-687
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume12
Issue number1-4
DOIs
Publication statusPublished - 2002 Jan

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Scattering
scattering
Fermi level
Transition metals
narrowband
transition metals
electrons
Electron Transport

Keywords

  • Conductance quantization
  • Conductance suppression
  • Interband scattering
  • Nano-junction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Interband scattering at metallic nano-junctions. / Ueno, K.; Eto, Mikio; Kawamura, K.

In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 12, No. 1-4, 01.2002, p. 684-687.

Research output: Contribution to journalArticle

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