Figure 1
From: Magnetic particles with perpendicular anisotropy for mechanical cancer cell destruction

(a) Schematic of the angles describing perpendicularly magnetized particles and (b) out-of-plane (red) and in-plane (black) hysteresis loops for an array of 2 μm CoFeB/Pt particles. (c) Schematic of the angles describing in-plane magnetized particles and (d) out-of-plane (red) and in-plane (black) hysteresis loops for an array of 2 μm Py vortex particles. The inset in (d) is a zoom of the low field region showing the vortex magnetization behavior.