deposition of Ag atom 56 type 1 elem Ag from -1.3105 4.9708 -3.0984 velocity 0.0009 -0.0034 0.0022 deposition of Ag atom 57 type 1 elem Ag from -2.2993 -4.2453 -3.9527 velocity 0.0026 0.0020 0.0025