Nanoscale investigation of phase change materials with Atom Probe Tomography
LEAP 4000X Si 3D map showing the redistribution of Ge, Sb, and Te in Sb2Te3-GeTe superlattice. The Sb2Te3-GeTe interfaces are highlighted using an iso-concentration surface of 35 at.% Ge. A high-angle grain boundary with a 65° misorientation angle is shown where the Sb2Te3-GeTe5 phase was detected.
Courtesy of Oana Cojocaru-Mirédin, I. Physikalisches Institut IA, RWTH Aachen University, Germany.