High-field magnetization of a Dy2Fe14Si3 single crystal

The magnetization of a Dy2Fe14Si3 single crystal was measured at 4.2 K in pulsed fields up to 51 T along the principal axes. The compound orders ferrimagnetically at 500 K, has a spontaneous magnetic moment of 8 μB/f.u. (at 4.2 K) and exhibits a very large magnetic anisotropy, 〈1 0 0〉 being the easy axis. In fields applied along the 〈1 0 0〉 and 〈1 2 0〉 axes, field-induced phase transitions are observed at 33 T and at 39 T, respectively. The c-axis magnetization curve crosses the easy-axis curve at 19 T. At higher fields, for all directions, the magnetization continues to increase due to further bending of the sublattice moments. Temperature evolution of magnetic anisotropy and magnetic hysteresis are discussed as well.

Research highlights► High-field metamagnetic transitions as source of information on intersublattice interactions. ► Such transitions occur in single crystal of Dy2Fe14Si3 along [1 0 0] and [1 2 0] axes at 33 and 39 T. ► Recently developed theoretical model agrees well with experimental observation.