Spin dynamics in magnetic nanostructures

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The spin of the electron rather than its charge has created remarkable opportunities in electronics, coined spintronics. The rapid progress in this field requires further advances in understanding of spin interactions in nanoscopic geometries. I use Molecular Beam Epitaxy (MBE) for the deposition of ultrathin films and superlattices. Radio frequency, Mossbauer spectroscopy, dc and ps temporal and sub micron resolved magneto-optical Kerr effect imaging, electron transport, electron microscope techniques, and electron beam lithography provide us with the necessary tools in the study of magnetic nanostructures. Our studies involve spin dynamics with emphasis on the study of spin currents. We use peristaltic spin pumping to generate spin currents that are accompanied by no net electric charge transport. Nano multilayer structures are suitable for determining the main parameters governing the spin transport in normal metal interconnects between the magnetic electrodes in spintronics devices. I am going to broaden our research activity towards two new directions: