Abstract
We present the results of the magnetic and heat capacity study of a magnetic phase diagram of aHoFe3(BO3)4 single crystal. Two magnetic phase transitions are found in the low-temperature region.The transition from the paramagnetic to easy-plane antiferromagnetic state occurs atTN = 37.4 K and is independent of an applied magnetic field. The sharp heat capacity peaks andmagnetization jumps corresponding to the spontaneous and field-induced spin-reorientationtransitions between the easy-axis and easy-plane states are observed below 4.7 K. Also, theadditional heat capacity peaks, which can be attributed to the Schottky anomalieswith the field-dependent characteristic temperatures, are found. According tothe magnetic and thermal measurement data, the magnetic phase diagrams ofHoFe3(BO3)4 for the magnetic field parallel and perpendicular to the crystal axis are constructed.
Published Version
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