Tunnel magnetoresistance of polymeric chains
Soft Condensed Matter
2007-05-23 v2
Abstract
Coherent spin-dependent electronic transport is investigated in a molecular junction made of polymeric chain attached to ferromagnetic electrodes (Ni and Co, respectively). Molecular system is described by a simple Huckel model, while the coupling to the electrodes is treated through the use of a broad-band theory. The current flowing through the device is calculated within non-equilibrium Green's function approach. It is shown that tunnel magnetoresistance of molecular junction can be quite large (over 100 %)and strongly depends on: (i) the lenght of the polymeric chain and (ii) the strength of the molecule-to-electrodes coupling.
Keywords
Cite
@article{arxiv.cond-mat/0410625,
title = {Tunnel magnetoresistance of polymeric chains},
author = {Kamil Walczak},
journal= {arXiv preprint arXiv:cond-mat/0410625},
year = {2007}
}
Comments
6 pages, 5 figures