Exploring the impact of bonding on switching kinetics (B04)

• Subject Area: Thermodynamics and Kinetics as well as Properties of Phases and Microstructure of Materials
• Term: from 2011 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 167917811

In Project B4, we plan to elucidate the relationship between structure, bonding and kinetics in phase-change materials. For this purpose, we will employ various experimental tools (ultrafast calorimetry, opti-cal tester) in combination with ab initio simulations and machine-learning methods. The main goals will be to link the ultrafast crystallization at high temperature and the relaxation of the amorphous state at low temperature to specific structural motifs and bonding mechanisms. We will also investigate the stability of ultrathin films of crystalline phase-change materials in relation to their bonding characteristics.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 917: Resistively Switching Chalcogenides for Future Electronics - Structure, Kinetics and Device Scalability: 'Nanoswitches'
• Applicant Institution: Rheinisch-Westfälische Technische Hochschule Aachen
• Project Heads: Professor Dr. Riccardo Mazzarello; Professor Dr. Matthias Wuttig