Figure 1
APS/Alan Stonebraker

Figure 1: A scanned laser beam reveals magnetic textures through (a) the anomalous Nernst effect and (b) the spin Seebeck effect. The orientation of the local magnetization (red arrows) is mapped out by scanning a laser-generated hot spot across a sample while measuring a voltage V produced by the anomalous Nernst or the spin Seebeck effect for conducting and insulating ferromagnets, respectively. The planes below show the output magnetic spin structure resulting from the measurement, with red parallel to the magnetic field, white perpendicular, and blue antiparallel.