Similarly, at a constant growth temperature and V:III ratio, increasing the growth rate alters {HEAD ~ the surface morphology} from a smooth pit free surface to {TAIL ~ a pitted surface} and eventually to a polycrystalline morphology 
to
Similarly , at a constant growth temperature and V : III ratio , increasing the growth rate alters { HEAD ~ the surface morphology } from a smooth pit free surface to { TAIL ~ a pitted surface } and eventually to a polycrystalline morphology
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH