Interband scattering at metallic nano-junctions

K. Ueno, M. Eto, K. Kawamura

Research output: Contribution to journalConference articlepeer-review

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 1
Event14th International Conference on the - Prague, Czech Republic
Duration: 2001 Jul 302001 Aug 3

Keywords

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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