The articles collected in this book cover a wide range of materials with
extraordinary superconducting and magnetic properties. For many of the
materials studied, strong electronic correlations provide a link between
these two phenomena which were long thought to be highly antagonistic.
Both the progress in our understanding of fundamental physical processes
and the advances made towards the development of devices are reported
here. The materials studied come in a variety of forms and shapes from
bulk to epitaxial films, nano- and heterostructures down to those
involving single molecules and double quantum dots. In some cases the
structuring serves the study of bulk properties. More often it is the
change of these properties with nanostructuring and the properties of
different materials in close proximity with each other that are of key
interest because of possible application of these materials or
heterostructures to quantum computing and spintronics.