J. Phys. IV France
Volume 132, March 2006
Page(s) 7 - 10
Publié en ligne 11 mars 2006
10th International Conference on the Formation of Semiconductor Interfaces
C. Girardeaux, et al.
J. Phys. IV France 132 (2006) 7-10

DOI: 10.1051/jp4:2006132003

Study of electric conductance of atomic or molecular wire in terms of the phase-shift

Y. Otsuka, N. Shima and K. Makoshi

Graduate School of Material Science, University of Hyogo, 3-2-1 Koto, Kamigori, Ako-gun, Hyogo 678-1297, Japan

A simple expression of the electric conductance through a nanostructure connected to 2 electrodes is obtained by using the phase-shift analysis. The phase-shifts are given by solving the characteristic equation obtained by extending the method applied to the single impurity problem in the metal. It is shown the importance of the effect due to multiple orbitals in nanostructures. Concrete examples of the conductance through some bridge systems are given.

© EDP Sciences 2006