Spin spirals: magnetostatics

Magnetostatics and the rotational sense of cycloidal spin spirals.
N. Mikuszeit, S. Meckler, R. Wiesendanger, and R. Miranda
Phys. Rev. B 84, 054404 (2011)

Magnetization vector field of a sinusoidal
and cycloidal spin spiral. Contour lines give the constant magnetic
potential.

(a) Equipotential lines of the spin spiral. (b) Potential
due to the induced magnetization of the substrate.