2024/06/21 by Yang Hu, Giacomo Lorenzin, Hu, Yang +15
Engineering · Materials Science · #Advanced materials and composites #Advanced ceramic materials synthesis #Nanotechnology research and applications
paper · pdf · doi:10.48550/arxiv.2406.14959
The intrinsic stress in nanomultilayers (NMLs) is typically dominated by interface stress, which is particularly high in immiscible Cu/W NMLs. Here, atomistic simulations with a chemically-accurate neural network potential reveal the role of interfacial intermixing and metastable phase formation on the interface stress levels. These results rationalize an experimentally-reported compressive- to-tensile transition as a function of NML deposition conditions and the extremely high interface stresses under some conditions.