Strain-driven valley-dependent Berry phase effects and topological transitions in Janus SVGeN2 monolayer
Jun Zhao,
Yunxi Qi,
Can Yao
et al.
Abstract:The manipulation of valley-dependent properties in two-dimensional (2D) materials is intriguing for developing valleytronics. Using first-principles calculations, we explore valley-dependent properties of Janus SVGeN2 monolayer and reveal large and tunable valley polarization by tensile strain. The SVGeN2 monolayer possesses excellent stability. Furthermore, strain-driven topological magneto-valley phase transitions are predicted for this monolayer, leading to the valley quantum anomalous Hall (VQAH) phenomeno… Show more
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