supported in part by the National Key R&D Program of China (2016YFA0300202);the National Basic Research Program of China (2014CB921201 and 2014CB921203);the National Natural Science Foundation of China (11374256, 11274269 and 11274006);the Natural Science Foundation of Zhejiang Province (LR12A04003)
Recently,CrAs based superconductors have attracted much attention.CrAs itself is a 3D antiferromagnet(AFM),which becomes superconducting(SC)under modest pressure with T_C^2 K[1].Subsequently,a new family of quasi-lD s...