@article {318336, title = {Morphological stability during solidification of silicon incorporating metallic impurities}, journal = {J. Appl. Phys.}, volume = {115}, year = {2014}, pages = {163516}, author = {J.M. Warrender and J. Mathews and Recht, D. and M. Smith and S. Grade{\v c}ak and M.J. Aziz} }