Quantum Monte Carlo study of a nonmagnetic impurity in the two-dimensional Hubbard model
Strongly Correlated Electrons
2009-11-10 v1 Superconductivity
Abstract
In order to investigate the effects of nonmagnetic impurities in strongly correlated systems, Quantum Monte Carlo (QMC) simulations have been carried out for the doped two-dimensional Hubbard model with one nonmagnetic impurity. Using a bare impurity potential which is onsite and attractive, magnetic and single-particle properties have been calculated. The QMC results show that giant oscillations develop in the Knight shift response around the impurity site due to the short-range antiferromagnetic correlations. These results are useful for interpreting the NMR data on Li and Zn substituted layered cuprates.
Keywords
Cite
@article{arxiv.cond-mat/0308074,
title = {Quantum Monte Carlo study of a nonmagnetic impurity in the two-dimensional Hubbard model},
author = {N. Bulut},
journal= {arXiv preprint arXiv:cond-mat/0308074},
year = {2009}
}
Comments
10 pages, 7 figures