Effect of Nitrogen Doping on the Crystallization Kinetics of Ge2Sb2Te5.

ABSTRACT: Among the phase change materials, Ge2Sb2Te5 (GST-225) is the most studied and is already integrated into many devices. N doping is known to significantly improve some key characteristics such as the thermal stability of materials and the resistance drift of devices. However, the origin, at the atomic scale, of these alterations is rather elusive. The most important issue is to understand how N doping affects the crystallization characteristics, mechanisms and kinetics, of GST-225. Here, we report the results of a combination of in situ and ex situ transmission electron microscopy (TEM) investigations carried out on specifically designed samples to evidence the influence of N concentration on the crystallization kinetics and resulting morphology of the alloy. Beyond the known shift of the c

SUBMITTER: Luong MA 

PROVIDER: S-EPMC8308197 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature