Credit: Brookhaven National Laboratory
High-resolution image of the vanadium-doped sample grown (gold and brown stripes) on an etched silicon substrate (bottom-left, brown region). Another capping layer (top-right, yellow region) is mainly composed of amorphous tellurium protection layers. The upper right inset is a reflection of the high-energy electron diffraction image showing the high crystalline quality of the custom-grown film.