研究論文
Metamagnetic Transition and Magnetocaloric Effect of PrMnGe
2020 年 67 巻 2 号 p. 103-106
詳細
2020 年 67 巻 2 号 p. 103-106
PrMnGe was reported to exhibit three magnetic transitions at 415, 150, and about 80 K. The last transition was attributed to the ferro-antiferromagnetic (F-AF) transition. We have investigated the magnetization of PrMnGe as functions of temperature and magnetic field in detail using a pure polycrystalline sample. A first-order metamagnetic transition is observed below 80 K in magnetic fields lower than 5 T. Magnetocaloric effect for PrMnGe related to the F-AF transition is evaluated from the magnetization data. The maximum value of the entropy change from H = 5 to 0 T is calculated to be ΔSM = 24 mJ/K cm3 at Tmax = 69 K.
