Pseudo-combustion phenomena in advanced materials

Title： Pseudo-combustion phenomena in advanced materials Speaker： Mikhail Modestov (Nordita, Sweden) Time： 3月5日（周二）下午2:00-4:00，物理系三樓報告廳. Abstract: If we think about combustion process in the most general sense, than we can treat it as a process of matter transformation from one state to another, which happens in a very localized region. There is a big variety of phenomena where we can meet fronts of different nature. In this talk I will describe two examples of fronts from our recent studies. First I will talk about organic semiconductors and we will see that fronts of electrochemical doping resemble flame front corrugated by Darrieus-Landau instability. Secondly I will describe magnetization reversal in crystals of molecular magnets; due to close similarity to combustion it has been called magnetic deflagration. Apart to slow subsonic regime I will also consider main features of magnetic detonation.