Mirages and enhanced magnetic interactions in quantum corrals

Details Mirages and enhanced magnetic interactions in quantum corrals Mirages and enhanced magnetic interactions in quantum corrals

2001-11-22

arxiv.org/abs/cond-mat/0111441v1

Physics

Condensed Matter

7 pages, 5 figures

Scientific paper

10.1209/epl/i2002-00102-1

We develop a theory for the interactions between magnetic impurities in nanoscopic systems. The case of impurities in quantum corrals built on the (111) Cu surface is analyzed in detail. For elliptical corrals with one impurity, clear magnetic mirages are obtained. This leads to an enhancement of the inter-impurity interactions when two impurities are placed at special points in the corral. We discuss the enhancement of the conduction electron response to the local perturbation in other nanoscopic systems.

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