1210.3100 (Jakson M. Fonseca et al.)

Localized and polarized charged zero modes in three-dimensional
topological insulators induced by a magnetic vortex    [PDF]

Jakson M. Fonseca, Winder A. Moura-Melo, Afranio R. Pereira

Coating a three-dimensional topological insulator with a ferromagnetic film supporting an in-plane magnetic vortex renders electronic states bound to the vortex. Charged zero-modes also appear as fully polarized current localized near the vortex center. From the magnetic point of view, such a special current can be faced as an alternative technique for detecting magnetic vortices in thin films.

View original: http://arxiv.org/abs/1210.3100