Workshop on Spin-Orbitronics, October 7-9, 2015, Grenoble, France
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Course Topics
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The first-generation spintronic devices use the exchange interaction between conduction electron spins and local spins in magnetic materials to create spin-polarized currents or to manipulate nanomagnets by spin transfer from spin-polarized currents. One of the burgeoning areas of next-generation spintronics - which can be called spin-orbitronics - exploits relativistic effects in nonmagnetic materials know as spin-orbit coupling (SOC) to generate, detect or exploit spin-polarized currents. This opens a path toward spintronic operated without cumbersome for nanosacle integration external magnetic fields. SOC can also give rise to strong Dzyaloshinskii-Moriya interaction (DMI) which competes with conventional exchange interaction to create chiral domain walls or skyrmions as swirling spin textures characterized by nanoscale size, topological stability against defects and impurities, and gyro-dynamics analogous to that of a charged particle under magnetic field. In this workshop, we bring together experimentalists and theorists to review the current status of the phenomena like spin torque and spin pumping in the presence of strong interfacial SOC (introduced by using layers of heavy metals or topological insulators in contact with ferromagnetic layers), as well as skyrmion and chiral domain wall dynamics.
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ACKNOWLEDGMENT: Portion of the course material is based upon work supported by the National Science Foundation under Grants No. ECCS 0725566 and ECCS 1202069. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation.
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