Abstract
We made in-situ observation on the overgrowth of n-C_<36>H_<74> at a constant supersaturation by oblique transmission IR method. The polytypic structures of an overgrown crystal show the strong dependence on the supersaturation and the polytypic structure of the substrate crystal. From the analysis of the solubility of each polytypo, it is clarified that the entropy has a profound effect on the relative stabilities of polytypes.
