Distribution Coefficient of Boron in Germanium

Abstract
The effective distribution coefficient of boron in germanium has been measured as a function of crystal growth rate. Its behavior is shown to agree with that predicted by the theory of Burton et al. for a solute whose equilibrium distribution coefficient is greater than unity. The coefficient decreases rapidly with increasing growth rate from its equilibrium value 17.4 to 2.2 at a growth rate of 10—2 cm/sec.