New configurations of rare-earth superlattices

We have successfully grown high-quality Dy/Y rare-earth superlattices with their $a$ or $b$ axes perpendicular to the growth plane, at choice. Earlier efforts by molecular-beam-epitaxy methods produced only growth along the $c$ axis. In other research, we have grown almost freestanding superlattices of Dy/Y and other hexagonal rare-earth superlattices. These new configurations make a variety of significant new experiments accessible.