Geometric vector potentials from non-adiabatic spin dynamics
arXiv:1703.07100 · doi:10.1103/PhysRevB.96.035312
Abstract
We propose a theoretical framework that captures the geometric vector potential emerging from the non-adiabatic spin dynamics of itinerant carriers subject to arbitrary magnetic textures. Our approach results in a series of constraints on the geometric potential and the non-adiabatic geometric phase associated with it. These constraints play a decisive role when studying the geometric spin phase gathered by conducting electrons in ring interferometers under the action of in-plane magnetic textures, allowing a simple characterization of the topological transition recently reported by Saarikoski et al. [Phys. Rev. B 91, 241406(R) (2015)] in Ref. 1.
Accepted for publication in Physical Review B (updated version, 6 pages, 1 figure)