the National Natural Science Foundation of China(Grant Nos.12174454,11904414,11904416,and 12104427);the Guangdong Basic and Applied Basic Research Foundation,China(Grant No.2021B1515120015);the Guangzhou Basic and Applied Basic Research Foundation(Grant No.202201011123);the National Key Research and Development Program of China(Grant No.2019YFA0705702).
We report the synthesis and characterization of a Si-based ternary semiconductor Mg_(3)Si_(2)Te_(6),which exhibits a quasitwo-dimensional structure,where the trigonal Mg_(3)Si_(2)Te_(6)layers are separated by Mg ions....