Magnetic phase diagram of dysprosium

We have studied the magnetic phase diagram of single crystal dysprosium (Dy) below the Neel temperature. The recent study by Andrianov et al. showed that magnetic phase diagram of Dy for applied magnetic field along the b-axis, contains four regions: I-helical antiferromagnetic phase, II-angular phase, III-fan phase and IV-collinear ferromagnetic phase. In our study we have used magnetization measurements to construct the magnetic phase diagram of Dy in the H-T plane (H is the applied magnetic field, T is the temperature). Our magnetic phase diagram of Dy for H along the b-axis is very similar to that of Andrianov et al.