ブルガリアSofia大学Vassil Ivanov博士の講演会が11月20日に開催されました。
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＊講演者: Dr. Vassil Ivanov (Sofia University, Bulgaria)
＊題目: Step Bunching and Meandering Dynamics from a Generalized Reaction-Diffusion Model
＊日時・場所: 11月20日(木) 15:00-16:00 @応力研2F大会議室
＊概要：Step bunching on DC-heated Si(111) vicinal surfaces was first reported more than 30 years ago by Latyshev et.al. Since then, major advances in the field have been achieved and step bunching has been observed in a wide range of material systems (experimental conditions): GaN(001), W(110), Al2O3(0001), MgAl2O4(100). What has been paradigmatic in the field, especially from theoretical point of view, is that step bunching and the meandering of the steps are two separate, incompatible processes with alternative prerequisites, that occur at different conditions during which the growth (or sublimation) is carried out. Recently however, computational Cellular-Automaton + Monte-Carlo (CA+MC) based models have shown that these two process can be complementary to each other, thus leading to rich surface morphologies that can be studied in silico.
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