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! <h2 style="margin:0;background-color:#cef2e0;font-size:120%;font-weight:bold;border:1px solid #a3bfb1;text-align:left;color:#000;padding:0.2em 0.4em;"> Scope and Objectives</h2> | ! <h2 style="margin:0;background-color:#cef2e0;font-size:120%;font-weight:bold;border:1px solid #a3bfb1;text-align:left;color:#000;padding:0.2em 0.4em;"> Scope and Objectives</h2> | ||
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|style="color:#000"|[[Image:ee_ti.jpg|left|400px]] 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 exploits relativistic effects in nonmagnetic materials know as spin-orbit coupling (SOC) to generate, detect or exploit spin-polarized currents. In particular, strong surface and bulk SOC effects can be introduced into heterostructures using recently discovered topological insulator (TI) materials. They possess a usual band gap in the bulk while also hosting metallic surfaces whose low-energy quasiparticles behave as massless Dirac fermions with spins locked to their momenta. The 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 TI-based heterostructures, direct and inverse Edelstein effect on the surface of TIs, as well as | |style="color:#000"|[[Image:ee_ti.jpg|left|400px]] 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 exploits relativistic effects in nonmagnetic materials know as spin-orbit coupling (SOC) to generate, detect or exploit spin-polarized currents. In particular, strong surface and bulk SOC effects can be introduced into heterostructures using recently discovered topological insulator (TI) materials. They possess a usual band gap in the bulk while also hosting metallic surfaces whose low-energy quasiparticles behave as massless Dirac fermions with spins locked to their momenta. The 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 TI-based heterostructures, direct and inverse Edelstein effect on the surface of TIs, dynamics of magnetic skyrmions, as well as interplay of topology of skyrmions in real space and topology of Dirac electrons in ''k''-space. | ||
'''Invited Speakers:''' | '''Invited Speakers:''' |
Revision as of 06:34, 12 May 2015
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