8 Lattice=" 5.4484 0 0 0.00476084 5.4399 0 -0.0697031 -0.0639637 5.39979 " Si -0.00902537 -0.0303023 -0.0491559 Si 1.28054 1.44048 1.35481 Si -0.0535965 2.57981 2.82719 Si 1.28029 4.0563 4.12138 Si 2.62772 -0.07771450000000001 2.68834 Si 4.08246 1.48548 4.03991 Si 2.84369 2.84518 0.0189163 Si 4.03071 4.03913 1.36727