Field-induced spin reorientation in the Neel-type antiferromagnet MnPS3

Manipulation of spin orientation in magnetic material has been the focus of increasing research interest, as it brings fascinating perspectives with regard to the exploration of underlying magnetic interactions and the design of electronic devices. Here we report on the field-induced spin reorientation below Neel temperature in antiferromagnet MnPS3. The ferromagnetic ordering emerges in the antiferromagnetic phase in MnPS3 at temperatures below -34 K with external magnetic fields up to -2 kOe. Such a coexistence of the ferromagnetic and antiferromagnetic phases is obtained in both perpendicular (Hlab) and parallel (H//ab) configurations, even with strong anisotropy. The H -T phase diagram for MnPS3 single crystal is further established with multiple magnetic phases being demonstrated. A phenomenological picture of the evolution of spin reorientation under external magnetic fields is proposed as physical insight into the rich magnetic properties of MnPS3. Our findings examine an exciting frontier in fundamental investigations of low-dimensional antiferromagnets and open a path towards the realization of conceptual electronic devices.