Correlation-enhanced Friedel oscillations in amorphous alloys and quasicrystals
Materials Science
2009-10-31 v1 Disordered Systems and Neural Networks
Abstract
We show that quantum correlations induced by electron-electron interactions in the presence of random impurity scattering can play an important role in the thermal stabilization of amorphous Hume-Rothery systems: When there is strong backscattering off local, concentrical ion clusters, the static electron density response acquires a powerlaw divergence at even at elevated temperature. This leads to an enhancement as well as to a systematical phase shift of the Friedel oscillations, both consistent with experiments. The possible importance of this effect in icosahedral quasicrystals is discussed.
Keywords
Cite
@article{arxiv.cond-mat/9810068,
title = {Correlation-enhanced Friedel oscillations in amorphous alloys and quasicrystals},
author = {Johann Kroha},
journal= {arXiv preprint arXiv:cond-mat/9810068},
year = {2009}
}
Comments
3 pages, 2 figures, RevTeX; to be published in proceedings of the 10th int. conference on liquid and amorphous metals LAM10, Physica C (1999)