Spin- and charge-density oscillations in spin chains and quantum wires
Strongly Correlated Electrons
2009-10-31 v2 Mesoscale and Nanoscale Physics
Abstract
We analyze the spin- and charge-density oscillations near impurities in spin chains and quantum wires. These so-called Friedel oscillations give detailed information about the impurity and also about the interactions in the system. The temperature dependence of these oscillations explicitly shows the renormalization of backscattering and conductivity, which we analyze for a number of different impurity models. We are also able to analyze screening effects in one dimension. The relation to the Kondo effect and experimental consequences are discussed.
Cite
@article{arxiv.cond-mat/0002001,
title = {Spin- and charge-density oscillations in spin chains and quantum wires},
author = {Stefan Rommer and Sebastian Eggert},
journal= {arXiv preprint arXiv:cond-mat/0002001},
year = {2009}
}
Comments
Final published version. 15 pages in revtex format including 22 epsf-embedded figures. The latest version in PDF format is available from http://fy.chalmers.se/~eggert/papers/density-osc.pdf