4 Lattice="3.0 0.0 0.0 0.0 3.0 0.0 0.0 0.0 3.0" Properties=species:S:1:pos:R:3:forces:R:3 energy=-0.43926454979 stress="-4.896587847584647 -0.06826338554171818 0.769781532582197 -0.06826338554171818 -4.062202184026509 -0.06941787320089617 0.769781532582197 -0.06941787320089617 -4.394024235196594" pbc="F F F" Si -0.27948471 0.19273990 -0.19277068 -8.27841153 -8.44393690 -4.80046242 Si 1.26172667 1.55332204 -0.11563527 10.50397995 9.25828590 -9.51140861 Si 1.73110688 -0.00183978 1.51283276 8.54655135 -8.81132482 2.19116353 Si 0.20071341 1.32858036 1.64720807 -10.77211978 7.99697583 12.12070750