Ferromagnetic instabilities in atomically-thin lithium and sodium wires
Materials Science
2007-05-23 v2
Abstract
Using density functional theory the ground state structural, electronic, and magnetic properties of monatomic lithium and sodium chains with low average density are investigated. A metallic, zigzag ground state structure is predicted but, most interestingly, stable equilibria for chains under tension are predicted to be {\it ferromagnetic}, which can be traced to exchange effects arising from occupation of the second subband as a function of the interatomic distance.
Cite
@article{arxiv.cond-mat/0103499,
title = {Ferromagnetic instabilities in atomically-thin lithium and sodium wires},
author = {A. Bergara and J. B. Neaton and N. W. Ashcroft},
journal= {arXiv preprint arXiv:cond-mat/0103499},
year = {2007}
}
Comments
Revised version; 4 pages, 4 figures; to appear in International Journal of Quantum Chemistry (2003)