snse2 frozen isolated layer in common cell
   1.00000000000000     
     3.9501156207146009    0.0000000001522404   -0.0000000000000000
    -1.9750578097205296    3.4209004743098745    0.0000000000000000
    -0.0000000000000001    0.0000000000000002   39.4021877938467284
Sn Se
1 2
Direct
 0.0000000000000000 0.0000000000000000 0.5036394637538087
 0.6666666670000012 0.3333333329999988 0.5421918198149582
 0.3333333329999988 0.6666666670000012 0.4578081801850417

