336 citations · 2.1k across the 77 of their papers we have counts for
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Boundary and finite-size effects in the competition between indirect magnetic exchange and Kondo screening
Irakli Titvinidze, Michael Potthoff
A system of conduction electrons can mediate an indirect magnetic exchange between magnetic impurites. The nonlocal exchange typically competes with the local Kondo screening of th…
Competition between Kondo screening and indirect magnetic exchange in a quantum box
Andrej Schwabe, Daniel Gütersloh, Michael Potthoff
Nanoscale systems of metal atoms antiferromagnetically exchange coupled to several magnetic impurities are shown to exhibit an unconventional re-entrant competition between Kondo s…
Dynamical mean-field theory of indirect magnetic exchange
Irakli Titvinidze, Andrej Schwabe, Niklas Rother +1
To analyze the physical properties arising from indirect magnetic exchange between several magnetic adatoms and between complex magnetic nanostructures on metallic surfaces, the re…
Static and dynamic variational principles for strongly correlated electron systems
Michael Potthoff
The equilibrium state of a system consisting of a large number of strongly interacting electrons can be characterized by its density operator. This gives a direct access to the gro…
Doublon dynamics in the extended Fermi Hubbard model
Felix Hofmann, Michael Potthoff
Two fermions occupying the same site of a lattice model with strongly repulsive Hubbard-type interaction U form a doublon, a long-living excitation the decay of which is suppressed…