Fig. 1: Illustration of spin pumping and the magnetic phase transition of FeRh.
From: Spin pumping during the antiferromagnetic–ferromagnetic phase transition of iron–rhodium
a Illustration of vertical spin pumping by magnetization dynamics from FM-FeRh into Pt, and lateral spin pumping from FM-FeRh into AFM-FeRh during the phase transition. Due to the ultrathin thickness (10 nm) and relatively large in-plane domain size (the diameter ranges from hundreds of nm to μm) of FeRh, the FM domains can be simply treated as flat pillars and the magnetic easy axis lies in-plane. b Schematic of the measurement configuration for spin pumping. The FeRh/Pt bilayers were patterned into long stripes and integrated into the gap of a CPW. c Temperature-dependent normalized magnetization (black squares) and four-point resistance (red circles) of FeRh (10)/Pt.
