Recursive approach to study transport properties of atomic wire
  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. 
Soumendu Datta, Tanusri Saha-Dasgupta, Abhijit Mookerjee
cond-mat.mes-hall