THE MICRO-MORPHOLOGY OF THE SOLID-LIQUID INTERFACE ON CZOCHRALSKI-GROWN LiNbO₃ SINGLE CRYSTAL

The micro-morphology of the interface transition from (01 ī 2) facet to freezing isotherm curve has been observed. In the centre of the interface (the high supercooling region), the morphology of (01 ī 2) facet shows characteristics of terrace-step-kink structure. By reducing supercooling, the growth interface gradually turn to agreeing with the freezing isotherm curve.