Exploring structural instabilities in phase change materials without heat

• Applicant: Professor Dr. Martin Salinga
• Subject Area: Synthesis and Properties of Functional Materials ; Experimental Condensed Matter Physics ; Theoretical Condensed Matter Physics ; Thermodynamics and Kinetics as well as Properties of Phases and Microstructure of Materials
• Term: since 2025
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 566292984

Peierls-like lattice distortion of antimony and phase change materials in general is the result of a subtle energy balance, which is sensitive to the application of electric charge. In this project, we develop methods to investigate these structural instabilities and their influence on material properties in simulations and in experiments. We tune the distortion by introducing charge to the crystalline, the supercooled liquid and the glass state of phase change materials. Building on the resulting insights we will identify materials ideally suited for devices to be used in photonic applications.

• DFG Programme: Research Grants