the Taishan Scholar Program of Shandong Province,China(Grant No.ts20190939);the Independent Cultivation Program of Innovation Team of Jinan City(Grant No.2021GXRC043);the National Natural Science Foundation of China(Grant No.52173283).
Manipulation of the valley degree of freedom provides a new path for quantum information technology,but the real intrinsic large valley-polarization materials are rarely reported up to date.Here,we perform first-princ...