Abstrak RSS

Sputtering Of A Silicon Surface: Preferential Sputtering Of Surface Impurities

Sputtering Of A Silicon Surface: Preferential Sputtering Of Surface Impurities
Maureen L. Nietiadi, Yudi Rosandi, Jan Lorincík, Herbert M. Urbassek
Universitas Padjadjaran, Nuclear Instruments and Methods in Physics Research B 303 (2013) 205–208, Publisher Elsevier B.V., journal homepage: www.elsevier.com/locate/nimb, http://dx.doi.org/10.1016/j.nimb.2012.09.023
Bahasa Inggris
Universitas Padjadjaran, Nuclear Instruments and Methods in Physics Research B 303 (2013) 205–208, Publisher Elsevier B.V., journal homepage: www.elsevier.com/locate/nimb, http://dx.doi.org/10.1016/j.nimb.2012.09.023
, , ,

We present molecular-dynamics simulations of the sputtering of an impurity atom off a Si 2 X 1 (100) surface by 2 keV Ar ions. The impurity is characterized by its mass and its binding energy to the Si substrate. We find that sputtering strongly decreases with the mass and even more strongly with the binding energy of the impurity atom to the matrix. The velocity of the impurity perpendicular to the surface is reduced with increasing impurity mass and binding energy. In terms of available ionization theories we can conclude that heavier impurities will have a smaller ionization probability.

Download: .Full Papers