Two-dimensional bipolar magnetic semiconductors with electrically controllable spin polarization realized

Two dimensional (2D) magnetic semiconductors, integrating semiconductivity, ferromagnetism and low dimensionality, serve as the cornerstone for high-speed nanospintronic devices. However, the practical applications of nowadays 2D magnetic semiconductors face two key problems: the rather low magnetic Curie temperature compared to room temperature, and the lack of a simple and efficient method to control the carrier’s spin polarization direction. Thus, exploring 2D magnetic semiconductors with room temperature magnetic ordering and controllable spin polarization is highly desirable.