  Traditional studies that combine spintronics and superconductivity have
mainly focused on the injection of spin-polarized quasiparticles into
superconducting materials. However, a complete synergy between superconducting
and magnetic orders turns out to be possible through the creation of
spin-triplet Cooper pairs, which are generated at carefully engineered
superconductor interfaces with ferromagnetic materials. Currently, there is
intense activity focused on identifying materials combinations that merge
superconductivity and spintronics to enhance device functionality and
performance. The results look promising: it has been shown, for example, that
superconducting order can greatly enhance central effects in spintronics such
as spin injection and magnetoresistance. Here, we review the experimental and
theoretical advances in this field and provide an outlook for upcoming
challenges in superconducting spintronics.
