Magnetic Phase Diagram of Hexagonal FeGe

Abstract
The magnetic phase diagram (B-T phase) of hexagonal FeGe was determined by measurements of the differential magnetic moment dM/dB. In an external pulsed magnetic field parallel to the magnetic axis (c-axis) spin flop transitions were observed for temperatures from 1.5 K to 290 K. The critical spin flop field at 4.2 K is 7.1 T (71 kG).