Friday, May 24, 2013

1305.5504 (Andrej Schwabe et al.)

Inverse indirect magnetic exchange    [PDF]

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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