Controllable density of states in molecular devices: the magnetic effect on cyclic molecules
Computational Physics
2007-11-13 v1 Chemical Physics
Abstract
Through the analysis of density of states (DOS), we study two different kinds of cyclic molecules, a sodium atomic circle and a Polycyclic Aromatic Hydrocarbons (PAH) molecule respectively under an external magnetic field. The results of calculation show that original DOS peaks split into two and the positions of peaks can be modulated periodically by controlling the magnetic field. We attribute this phenomenon to the interaction between the molecular orbital magnetic momentum and the magnetic field. Generally, this effect is obscure for a usual structure but obvious for the cyclic molecules.
Keywords
Cite
@article{arxiv.0711.1647,
title = {Controllable density of states in molecular devices: the magnetic effect on cyclic molecules},
author = {Jingzhe Chen and Jin Zhang and Rushan Han},
journal= {arXiv preprint arXiv:0711.1647},
year = {2007}
}
Comments
10 pages,6 figures