Manipulating magnetism and conductance of an adatom-molecule junction on metal surfaces: ab initio study
Materials Science
2009-11-13 v1
Abstract
The state of the art ab initio calculations reveal the effect of a scanning tunnelling microscopy tip on magnetic properties and conductance of a benzene-adatom sandwich on Cu(001). We concentrate on a benzene-Co system interacting with a Cr tip. Our studies give a clear evidence that magnetism and conductance in molecule-adatom junctions can be tailored by the STM tip. Varying the tip-substrate distance the magnetic moment of the Co adatom can be switched on/off. The interplay between spin-polarized electron transport through the junction and its magnetic properties is demonstrated. A spin-filter effect in the junction is predicted.
Keywords
Cite
@article{arxiv.0804.3337,
title = {Manipulating magnetism and conductance of an adatom-molecule junction on metal surfaces: ab initio study},
author = {Kun Tao and V. S. Stepanyuk and P. Bruno and D. I. Bazhanov and V. V. Maslyuk and M. Brandbyge and I. Mertig},
journal= {arXiv preprint arXiv:0804.3337},
year = {2009}
}
Comments
4 pages, 3 figures