Andrej Schwabe, Irakli Titvinidze, Michael Potthoff
Magnetic moments strongly coupled to the spins of conduction electrons in a nanostructure can confine the conduction-electron motion due to scattering at almost localized Kondo singlets. We show that this may lead to local-moment formation in the conduction-electron system and to a novel magnetic exchange coupling mediated by the Kondo singlets. Its distance dependence is oscillatory and induces robust ferro- or antiferromagnetic order in multi-impurity systems.
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http://arxiv.org/abs/1305.5504
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