Tuning the magnetism of two-dimensional hematene by ferroelectric polarization

We demonstrate a powerful scheme to realize robust control of magnetism in two-dimensional (2D) hematene/BaTiO ₃ heterostructure. Not only magnetism switching but also spin-polarized 2D electron gas is created by switching of the polarization. The results point the direction of the further development of the research field of electric field controlling magnetism.