Effect of co-rotation and counter-rotation on suppression of melt convection in magnetic Czochralski growth

Abstract

Melt flow phenomena of magnetic Czochralski growth are simulated numerically for a 5 inch diameter crystal grown from a 14 inch diameter crucible. It is found that, in conjunction with an axial magnetic field, co-rotation of the crystal with the crucible suppresses meridional circulation more thoroughly than counter-rotation. © 1987.