Janus VAZ3H (A = Si, Ge; Z = N, P) single layers exhibiting valley polarization, magnetic anisotropy, and topological transition.

Using first-principles calculations, we explore the electronic and topological properties of Janus VAZ3H single layers (A = Si, Ge; Z = N, P) that are dynamically and thermally stable. In the strain-free state, VSiN3H, VSiP3H, and VGeN3H demonstrate…

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