Magnetic Properties of a HoFe5Al7 Single Crystal
A single crystal of HoFe5Al7 (tetragonal ThMn12 structure) has been studied. HoFe5Al7 orders ferrimagnetically at TC = 227 K and has a compensation of the Ho and Fe sublattices at Tcomp = 65 K. The compound exhibits high easy-plane anisotropy. Strong anisotropy is also present within the basal plane, with the  axis being the easy magnetization direction. A high coercivity with Hc values attaining 1.6 T is found at 2 K. In the temperature range 40-80 K, HoFe5Al7 displays a field-induced magnetic transition along the easy  direction. Temperature dependence of the critical field Hcr of the transition is very strong, Hcr exceeds 14 T below 40 K.
Yuriy Verbovytskyy and António Pereira Gonçalves
D. I. Gorbunov and A. V. Andreev, "Magnetic Properties of a HoFe5Al7 Single Crystal", Solid State Phenomena, Vol. 194, pp. 54-57, 2013