Daniel Krebs, Simone Raoux, et al.
Journal of Applied Physics
Phase transformation generally begins with nucleation, in which a small aggregate of atoms organizes into a different structural symmetry. The thermodynamic driving forces and kinetic rates have been predicted by classical nucleation theory, but observation of nanometer-scale nuclei has not been possible, except on exposed surfaces. We used a statistical technique called fluctuation transmission electron microscopy to detect nuclei embedded in a glassy solid, and we used a laser pump-probe technique to determine the role of these nuclei in crystallization. This study provides a convincing proof of the time- and temperature-dependent development of nuclei, information that will play a critical role in the development of advanced materials for phase-change memories.
Daniel Krebs, Simone Raoux, et al.
Journal of Applied Physics
Brittany Gigliotti, Brenda Sakizzie, et al.
Nano Letters
Alessandro Fumarola, Pritish Narayanan, et al.
ICRC 2016
Stefano Ambrogio, Pritish Narayanan, et al.
VLSI-TSA 2020