https://doi.org/10.1051/epjconf/202023305010
Numerical Simulation of Non-Equilibrium Stationary Currents Through Nano-scale One-Dimensional Chains
1 Centro de Física das Universidades do Porto e Minho
2 Faculty of Sciences, University of Porto, Rua do Campo Alegre 4169-007, Porto, Portugal
3 University of Minho, Campus of Gualtar, 4710-057, Braga, Portugal
* Corresponding author: up201201453@fc.up.pt
Published online: 16 April 2020
Using a method based on the time-evolution of the occupied states at zero temperature, we observe the onset of a quasi-uniform and quasisteady state current across a disordered tight-binding chain, coupled between two finite (but large) clean leads with open boundaries. This current is seen to match the one obtained in the Landauer-Büttiker formalism and is also independent of the initial condition considered (partitioned or non-partitioned). Finite-size effects are also reported and briefly discussed.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.