Berlin 2018 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 21: Poster I

MA 21.42: Poster

Dienstag, 13. März 2018, 09:30–13:00, Poster A

Electronic transport through a one dimensional vacuum barrier using Greens functions — •Max Götzler, Michael Czerner, and Christian Heiliger — Institut für theoretische Physik, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Gießen

We study the electronic transport through a one dimensional vacuum barrier, using a tight-binding approximation and the method of Greens funtions for solving the Schrödinger equation. We calculate the transmission function and electron density in the equilibrium case. We then solve the poisson equation for the non interacting charge distribution and try to self-consistently calculate the new charge distribution with respect to electrostatic interactions. This is repeated for small applied voltages, using a steady state Keldysh-formalism. We calculate the current and the new electron density, then compare the results to the equilibrium case.