The charcteristics of melt flows, temperatures and concentrations of oxygen are numerically studied for various intensities of cusp magnetic fields in the Czochralski furnace. Cusp magnetic fields can suppress buoyancy force due to the heating of cruc...
The charcteristics of melt flows, temperatures and concentrations of oxygen are numerically studied for various intensities of cusp magnetic fields in the Czochralski furnace. Cusp magnetic fields can suppress buoyancy force due to the heating of crucible wall and centrifugal force due to the rotations of the crucible and crystal. As the magnetic fields are increased, velocities of the flow are greatly diminished, the average oxygen concentration is lowered and the radial uniformity of oxygen concentration at melt/crystal interface is improved.