Volume 123, Number 4, August 2018
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||10 September 2018|
Nonequilibrium Kondo-vs.-RKKY scenarios in nanoclusters
Department of Physics, Lund University - PO Box 118, 221 00 Lund, Sweden and European Theoretical Spectroscopy Facility (ETSF)
Received: 21 May 2018
Accepted: 14 August 2018
Ultrafast manipulations of magnetic phases are eliciting increasing attention from the scientific community because potentially relevant to the understanding of nonequilibrium phase transitions and to novel technologies. Here, we focus on manipulations applied to magnetic impurities in metallic hosts. By considering small nanoring geometries, we show how currents can induce a dynamical switching between different types of exchange interactions in these systems. Our work thus opens a study window on nonequilibrium Doniach's magnetic phase diagrams, and time-dependent Kondo-vs.-RKKY scenarios.
PACS: 75.78.Jp – Ultrafast magnetization dynamics and switching / 75.30.Et – Exchange and superexchange interactions / 71.10.Fd – Lattice fermion models (Hubbard model, etc.)
© EPLA, 2018
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