Unit:
Κατεύθυνση Φυσική των Υλικών (ΒΑΣΙΚΗ ΦΥΣΙΚΗ)Library of the School of Science
Supervisors info:
Φοίβος Μαυρόπουλος, Καθηγητής, Τμήμα Φυσικής, ΕΚΠΑ
Νικόλαος Στεφάνου, Καθηγητής, Τμήμα Φυσικής, ΕΚΠΑ
Yuriy Mokrousov, Professor, Institute of Physics, Johannes Gutenberg-University Mainz/ Researcher, Institute for Advanced Simulation (IAS-1), Forschungszentrum Juelich
Original Title:
Calculations of spin transport properties on topological insulator surfaces doped with magnetic defects
Translated title:
Calculations of spin transport properties on topological insulator surfaces doped with magnetic defects
Summary:
The field of topological insulators has been gaining importance over the last few years. These materials are characterized by metallic surface states with special spin texture due to strong spin orbit coupling, making them very promising for spin-transport applications.
This work comprises a theoretical and numerical investigation of spin transport properties, mediated by the metallic surface states of the topological insulator Bi2Te3, when the surface is doped with Mn magnetic impurities. The multiple scattering of electrons, caused by the perturbing potential of the defects, is treated by ab initio calculations within the relativistic Korringa-Kohn-Rostoker (KKR) Green function method. Based on the KKR method and the Boltzmann formalism, we calculate the spin accumulation, the spin flux contribution and the spin-orbit torque on the magnetic impurities, in response to the electric field.
Main subject category:
Science
Other subject categories:
Physics
Keywords:
Spin-orbit torque, topological insulator, magnetic impurities, multiple scattering, transport phenomena, spintronics
