Materials 2017, 10(7), 810; doi:10.3390/ma10070810
Generalized GW+Boltzmann Approach for the Description of Ultrafast Electron Dynamics in Topological Insulators
1
Institute of Solid State Physics, Vienna University of Technology, A-1040 Vienna, Austria
2
Peter Grünberg Institute and Institute for Advanced Simulation, Forschungszentrum Jülich and JARA, D-52425 Jülich, Germany
3
Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany
*
Author to whom correspondence should be addressed.
Received: 27 June 2017 / Revised: 27 June 2017 / Accepted: 11 July 2017 / Published: 17 July 2017
(This article belongs to the Special Issue Metal-Insulator Transition)
Abstract
Quantum-phase transitions between trivial insulators and topological insulators differ from ordinary metal-insulator transitions in that they arise from the inversion of the bulk band structure due to strong spin–orbit coupling. Such topological phase transitions are unique in nature as they lead to the emergence of topological surface states which are characterized by a peculiar spin texture that is believed to play a central role in the generation and manipulation of dissipationless surface spin currents on ultrafast timescales. Here, we provide a generalizedKeywords:
topological insulators; ultrafast dynamics; many-body perturbation theory; Boltzmann approach; time- and angle-resolved photoemission spectroscopy
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Battiato, M.; Aguilera, I.; Sánchez-Barriga, J. Generalized GW+Boltzmann Approach for the Description of Ultrafast Electron Dynamics in Topological Insulators. Materials 2017, 10, 810.
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