Doping effects in low dimensional antiferromagnets

Details Doping effects in low dimensional antiferromagnets Doping effects in low dimensional antiferromagnets

2006-03-31

arxiv.org/abs/cond-mat/0604001v1

Physica B 384, 192 (2006)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 7 figures. The latest version can be found at http://www.physik.uni-kl.de/eggert/papers/law3m.pdf

Scientific paper

10.1016/j.physb.2006.05.225

The study of impurities in low dimensional antiferromagnets has been a very active field in magnetism ever since the discovery of high temperature superconductivity. One of the most dramatic effects is the appearance of large Knight shifts in a long range around non-magnetic impurities in an antiferromagnetic background. The dependence of the Knight shifts on distance and temperature visualizes the correlations in the system. In this work we present the results for Knight shifts around a single vacancy in the one and two dimensional Heisenberg model.

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