On the orientation dependence of effective distribution coefficients of impurities

Abstract

AbstractGermanium crystals doped by antimony are grown by the Czochralski technique along 12 different crystallographic directions. The effective distribution coefficients (Kef) are determined here. It is shown that orientation dependence of kef could be explained by supercooling at growth surfaces correlating with number of layer systems {111} crossing that surfaces and with angles between that systems and direction of shift of the crystallization front.