Magnetic Properties of Layered Compound MnPS3

Magnetic properties of a layered compound MnPS₃ were investigated by means of magnetic susceptibility, high field magnetization and electron spin resonance. Temperature and angular dependence of EPR line width are characteristic of 2D-antiferromagnet. The main exchange interaction in the ab-plane is estimated to be J/k{=}-9.5± 0.2 K. High field magnetization process and AFMR measurements at low temperatures below T_N{=}78 K showed a spin-flop transition at H_c{=}38.0 kOe. They are satisfactorily explained by assuming the uniaxial anisotropy energy K{=}1.52± 0.10× 10⁵ erg/cm³ perpendicular to the ab-plane.