336 citations · 2.1k across the 77 of their papers we have counts for
77 papers
Geometrical torque on magnetic moments coupled to a correlated antiferromagnet
Nicolas Lenzing, David Krüger, Michael Potthoff
The geometrical spin torque mediates an indirect interaction of magnetic moments, which are weakly exchange coupled to a system of itinerant electrons. It originates from a finite…
Spin Berry curvature of the Haldane model
Simon Michel, Michael Potthoff
The feedback of the geometrical Berry phase, accumulated in an electron system, on the slow dynamics of classical degrees of freedom is governed by the Berry curvature. Here, we st…
Emergent Non-Abelian Gauge Theory in Coupled Spin-Electron Dynamics
Nicolas Lenzing, Alexander I. Lichtenstein, Michael Potthoff
A clear separation of the time scales governing the dynamics of "slow" and "fast" degrees of freedom often serves as a prerequisite for the emergence of an independent low-energy t…
Controlling the real-time dynamics of a spin coupled to the helical edge states of the Kane-Mele model
Robin Quade, Michael Potthoff
The time-dependent state of a classical spin locally exchange coupled to an edge site of a Kane-Mele model in the topologically non-trivial phase is studied numerically by solving…
Long-time relaxation dynamics of a spin coupled to a Chern insulator
Michael Elbracht, Michael Potthoff
The relaxation of a classical spin, exchange coupled to the local magnetic moment at an edge site of the one-dimensional spinful Su-Schrieffer-Heeger model is studied numerically b…
Interacting Chern Insulator in Infinite Spatial Dimensions
David Krüger, Michael Potthoff
We study a generic model of a Chern insulator supplemented by a Hubbard interaction in arbitrary even dimension and demonstrate that the model remains well-defined and nontrivi…