4 papers · 1 filter
On phase separation and crystallization of Ge-rich GeSbTe alloys from atomistic simulations with a machine learning interatomic potential
Omar Abou El Kheir, Dario Baratella, Marco Bernasconi
We developed a machine learning interatomic potential (MLIP) for Ge-rich GeSbTe alloys of interest for applications in phase change memories embedded in microcontrollers. The MLIP…
Liquid anomalies and Fragility of Supercooled Antimony
Flavio Giuliani, Francesco Guidarelli Mattioli, Yuhan Chen +5
Phase-change materials (PCMs) based on group IV, V, and VI elements, such as Ge, Sb, and Te, exhibit distinctive liquid-state features, including thermodynamic anomalies and unusua…
Microscopic model of the operation of the Single-chalcogenide X-point Memory
P. Fantini, A. Ghetti, E. Varesi +8
Ovonic threshold switching is the key process for several applications of chalcogenide alloys including phase change memories and selector elements in cross-points arrays. Very rec…
Unveiling the crystallization kinetics in Ge-rich GeTe alloys by large scale simulations with a machine-learned interatomic potential
Dario Baratella, Omar Abou El Kheir, Marco Bernasconi
A machine-learned interatomic potential for Ge-rich GeTe alloys has been developed aiming at uncovering the kinetics of phase separation and crystallization in these materials.…