Spin- and charge-density oscillations in spin chains and quantum wires

Citation
S. Rommer et S. Eggert, Spin- and charge-density oscillations in spin chains and quantum wires, PHYS REV B, 62(7), 2000, pp. 4370-4382
Citations number
48
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
0163-1829 → ACNP
Volume
62
Issue
7
Year of publication
2000
Pages
4370 - 4382
Database
ISI
SICI code
0163-1829(20000815)62:7<4370:SACOIS>2.0.ZU;2-M
Abstract
We analyze the spin- and charge-density oscillations near impurities in spi n chains and quantum wires. These so-called Friedel oscillations give detai led information about the impurity and also about the interactions in the s ystem. The temperature dependence of these oscillations explicitly shows th e renormalization of backscattering and conductivity, which we analyze for a number of different impurity models. We are also able to analyze screenin g effects in one dimension. The relation to the Kondo effect and experiment al consequences are discussed.