Files

Abstract

Phase-Change Memory relies on switching between an amorphous (glassy) and a crystalline state [Wu07]. Melt-quenching leads to amorphization, whereas heating below the melting point causes crystallization. In Phase-Change Materials crystallization is effectively absent at ambient conditions, but occurs within less than a nanosecond at high temperature [Br09, Ra17]. How is this contrast in crystallization rates possible? Crystallization speed scales with inverse viscosity. In fragile liquids, there is a wide temperature range of low viscosity, which enables fast crystallization. Upon cooling, the liquid becomes strong, so that the viscosity increases rapidly [Or15, Sa13, Za15]. What enables this transition, also observed in water? [Ki17].

Details

Statistics

from
to
Export