25 citations · 127 across the 8 of their papers we have counts for
8 papers
Screening mechanisms in magnetic nanostructures
Andrej Schwabe, Mirek Hänsel, Michael Potthoff +1
A theoretical concept is presented for the screening of several magnetic moments locally exchange coupled to conduction electrons in a metallic nanostructure. We consider a quantum…
Cooperation of different exchange mechanisms in confined magnetic systems
Andrej Schwabe, Mirek Hänsel, Michael Potthoff
The diluted Kondo lattice model is investigated at strong antiferromagnetic local exchange couplings J, where almost local Kondo clouds drastically restrict the motion of conductio…
Strong-coupling limit of depleted Kondo- and Anderson-lattice models
Irakli Titvinidze, Andrej Schwabe, Michael Potthoff
Fourth-order strong-coupling degenerate perturbation theory is used to derive an effective low-energy Hamiltonian for the Kondo-lattice model with a depleted system of localized sp…
Ferromagnetism of magnetic impurities coupled indirectly via conduction electrons: Insights from various theoretical approaches
Irakli Titvinidze, Andrej Schwabe, Michael Potthoff
The magnetic ground-state properties of the periodic Anderson model with a regular depletion of the correlated sites are analyzed within different theoretical approaches. We consid…
Inverse indirect magnetic exchange
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 sin…
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…
Interacting spin waves in the ferromagnetic Kondo lattice model
A. Schwabe, W. Nolting
We present an new approach for the ferromagnetic, three-dimensional, translational-symmetric Kondo lattice model which allows us to derive both magnon energies and linewidths (life…