Recursive approach to study transport properties of atomic wire

Datta, S. ; Saha-Dasgupta, T. ; Mookerjee, A. (2008) Recursive approach to study transport properties of atomic wire The European Physical Journal B - Condensed Matter and Complex Systems, 66 (1). pp. 57-65. ISSN 1434-6028

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Official URL: http://www.springerlink.com/content/442020542v3mn6...

Related URL: http://dx.doi.org/10.1140/epjb/e2008-00408-2

Abstract

In this study, we propose a recursive approach to study the transport properties of atomic wires. It is based upon a real-space block-recursion technique with Landauer's formula being used to express the conductance as a scattering problem. To illustrate the method, we have applied it on a model system described by a single band tight-binding Hamiltonian. Results of our calculation therefore may be compared with the reported results on Na-atom wire. Upon tuning the tight-binding parameters, we can distinctly identify the controlling parameters responsible to decide the width as well as the phase of odd-even oscillations in the conductance.

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