Skyrmion Lattice Manipulation with Electric and Thermal Currents*

Understanding how to manipulate a Skyrmion lattice (SkL) is necessary to create new technologies that make use of them. Here we report on small-angle neutron scattering (SANS) studies of the SkL in MnSi under the influence of radial electric and thermal currents. Using a semicircular sample, the currents have a 1/r dependence. Applying an electric current through the sample causes the SkL to rotate. Interestingly, the rotation angle shows a nonmonotonic current dependence and eventually changes sign at high currents. This is likely due to competing effects from electrical and thermal currents, which go as I and I² respectively. In my talk, I will discuss the interplay between these two competing effects.