Local Heating Induced Recrystallization

Well-known is the method of zone melting that is often used for purification, in which a thin molten zone is slowly moved along a cylinder axis of the material. Since the solubility of impurities is usually different in the melt and in the solid crystal, one achieves segregation of such impurities either at the front or back-end of the molten zone. With repetitive succession of such zone rectification can obtain a highly purified single crystal in the middle fraction.

Updated: July 31, 2015 — 2:39 pm