超微粒子の成長と特異性(<特集>西岡一水先生追悼号)

抄録

In this year, we suddenly lost our leader (Prof. K. Nishioka) on crystal growth theory. He is also interested in the nucleation of smoke and spontaneous compound formation by reaction between thin film and ultrafine particles. This field is again attracting interest as the mesoscopic physics, nanostructure, quantum dots and chemistry and physics of small many body system. Growth of ultrafine particles may develop not only in material science but also in the fields of dust physics. In this report, brief summary on growth of ultrafine particles and singular character are given on the bases of recent results. By the use of convection flow, the growth in smoke has been elucidated. The summary on the use of convection flow in smoke has been presented. By the simultaneous evaporation of metal and carbon or silicon oxide, the quantum dots covered with carbon and silicon oxide were produced. A-15 type structures of Cr and Fe have been found to be stable structure in cluster sizes. Growth of tetrapod from the cubic nucleus in ZnO has been verified by comparison of infrared spectroscopy among tetrapod, zincblende and wurtzite particles. It has been found that spontaneous compound formation between silicon and carbon film took place at room temperature.