Spin Vortices and Skyrmions of a Single Electron in Inhomogeneous Magnetic Fields

Autor: Naseri, Amin, Peng, Shenglin, Luo, Wenchen, Sirker, Jesko
Rok vydání: 2019
Předmět:
Zdroj: Phys. Rev. B 101, 115407 (2020)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevB.101.115407
Popis: We study the spin textures of a confined two-dimensional electron in inhomogeneous magnetic fields. These fields can either be external or effective fields due to a background magnetic texture in the plane in which the electron resides. By analytical considerations, WKB-type approximations, and by performing numerical diagonalizations we show that the in-plane spin field components of a single electron can form vortices while the total spin field can become a skyrmion. Most interestingly, we find that topological trivial magnetic fields can induce topological spin field configurations in the eigenstates of the electron due to quantum effects.
Databáze: arXiv