Figure 3

Anisotropic magnetic properties of FeGe2 nanowires. Temperature-dependent ZFC and FC magnetic moments when magnetic field was applied at out-of-plane direction (a) and in-plane direction (b), H = 1000 Oe. The inset of (b) shows the direct comparison of the out-of-plane and in-plane ZFC and FC data. (c) Field-dependent magnetization at 10 K for out-of-plane and in-plane, the inset is the zoom in the magnetization. (d) The initial ac susceptibilities under 0 field for out-of-plane and in-plane. (e) and (f) The schematic drawing of the relation among the two structure models of FeGe2, growth direction of the nanowires and the spin alignment of Fe atoms, with short axis in [−110] and [001] directions.