Ferromagnetic hybrid nodal loop and switchable type-I and type-II Weyl fermions in two dimensions
Ferromagnetic hybrid nodal loop and switchable type-I and type-II Weyl fermions in two dimensions
As a novel type of fermionic state, hybrid nodal loop with the coexistence of both type-I and type- II band crossings has attracted intense research interest. However, it remains a challenge to realize hybrid nodal loop in both two-dimensional (2D) materials and in ferromagnetic (FM) materials. Here, we propose the …