Year: 1997
Type: article
Abstract: In this paper, we study the zero-temperature persistent current in a ferromagnetic Kondo lattice model in the strong coupling limit. In this model, there are spontaneous spin textures at some values of the external magnetic flux. These spin textures contribute a geometric flux, which can induce an additional spontaneous persistent current. Since this spin texture changes with the external magnetic flux, we find that there is an anomalous persistent current in some region of magnetic flux: near $\ensuremath{\Phi}/{\ensuremath{\Phi}}_{0}=0$ for an even number of electrons and $\ensuremath{\Phi}/{\ensuremath{\Phi}}_{0}=1/2$ for an odd number of electrons.
Authors: Jun Zang, S. A. Trugman, A. R. Bishop, H. Röder
Institution: Los Alamos National Laboratory
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2072483836