Phase transition thin film device KU Leuven
The disclosed device comprises a thin film layer (4) of a phase transition material disposed over a substrate (2), and a confinement layer (3) adjacent to the thin film layer. The thin film layer has first and second in-plane lattice parameters and an out-of-plane lattice parameter when undergoing the phase transition, and the confinement layer has first and second in-plane layer lattice parameters and an out-of-plane layer lattice parameter. The confinement layer lattice parameters are within a range which allows to control the onset of and/or block the phase transition.