Integrating Antiferromagnetic/Ferromagnetic Heterojunction in Van Der Waals Fe 1+ y Te Film With Gradient Fe Doping

Te film. This originates from heavy Fe doping in the interfacial layers and the breaking of symmetry in the bicollinear AFM order within the lightly doped layers away from the interface. This work not only opens a new avenue for manipulating AFM/FM heterojunction in a single parent vdW system but also provides new insights into understanding the production of the EB effect on the bicollinear AFM vdW device platform.