Three dimensional simulation to observe the effects of the static magnetic field on the growth of Si0.25Ge0.75 in a vertical Bridgman setting

Abstract

Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.A numerical modeling and simulation of single bulk crystals of Si0.25Ge0.75 growth with Si rich is conducted to investigate the effect of static magnetic field on the heat and mass transfer in the solvent region in a vertical Bridgman furnace. The curvature and shape of the silicon concentration in the process of crystallization near the growth interface are also examined. Different magnetic field intensities were applied. The meridianal flow as well as the azimuthal flow in the solvent region under the applied polynomial temperature along the vertical dimension of the model were investigated and it was found that the axial magnetic field does not have effective influence on the buoyancy induced convection in the solvent region.