Two complementary effects modify the GHz magnetization dynamics of nanoscale hybrid structures of ferromagnetic and normal materials from those of the isolated magnetic constituents: On the one hand, a time-dependent ferromagnetic magnetization pumps a spin angular-momentum flow into adjacent materials and, on the other hand, spin angular momentum is transferred between ferromagnets by an appli...

– We study the electronic density of states in a mesoscopic superconductor near a transparent interface with a ferromagnetic metal. In our tunnel spectroscopy experiment, a substantial density of states is observed at sub-gap energies close to a ferromagnet. We compare our data with detailed calculations based on the Usadel equation, where the effect of the ferromagnet is treated as an effectiv...

Materials with high volume magnetization are perpetually needed for the generation of sufficiently large magnetic fields by writer pole of magnetic hard disks, especially for achieving increased areal density in storage media. In search of suitable materials combinations for this purpose, we have employed density functional theory to predict the magnetic coupling between iron and gadolinium lay...

Spintronics is an emerging field of research combining two traditional branches of physics: magnetism and electronics. It is based on the ability of ferromagnetic materials to conduct spin-polarized currents. The effectiveness of spintronics depends on the extent to which a current is spin-polarized [1], which in turn depends on the spin polarization of the ferromagnetic materials. All device d...