USE OF STANDING SURFACE WAVES AND OF A STATIONARY MAGNETIC FIELD
IN GROWING CRYSTALS BY THE FLOATING-ZONE METHOD IN WEIGHTLESSNESS

A. I. Feonychev

UDC 532.594, 532.78:537.84

A numerical investigation of the flow and heat and mass 
transfer during the growth of crystals by the floating-zone method 
in weightlessness using standing surface waves, created by applied 
vibration, and a stationary magnetic field has been carried out. With 
crystallization of silicon serving as the illustrative example, it 
is shown how, by selecting optimal parameters of the standing surface 
waves and of the magnetic field, one can appreciably (by severalfold) 
reduce the micro- and macrosegregation of the phosphorus impurity 
and grow a crystal with a uniformity that exceeds the best specimens 
obtained on the ground by the Czochralski method.

State Scientific-Research Institute of Applied Mechanics 
and Electrodynamics, Moscow, Russia; email: afeonychev@mail.ru. Translated 
from Inzhenerno-Fizicheskii Zhurnal, Vol. 80, No. 5, pp. 116<196>121, 
September<196>October, 2007. Original article submitted April 19, 
2006.