Electronic Transport Properties of 1D‐Defects in Graphene and Other 2D‐Systems

P Willke, MA Schneider, M Wenderoth - Annalen der Physik, 2017 - Wiley Online Library
The continuous progress in device miniaturization demands a thorough understanding of
the electron transport processes involved. The influence of defects‐discontinuities in the …

Quantum transport simulation scheme including strong correlations and its application to organic radicals adsorbed on gold

A Droghetti, I Rungger - Physical Review B, 2017 - APS
We present a computational method to quantitatively describe the linear-response
conductance of nanoscale devices in the Kondo regime. This method relies on a projection …

Antidam** spin-orbit torque driven by spin-flip reflection mechanism on the surface of a topological insulator: A time-dependent nonequilibrium Green function …

F Mahfouzi, BK Nikolić, N Kioussis - Physical Review B, 2016 - APS
Motivated by recent experiments observing spin-orbit torque (SOT) acting on the
magnetization m ⃗ of a ferromagnetic (F) overlayer on the surface of a three-dimensional …

Spin-orbit induced equilibrium spin currents in materials

A Droghetti, I Rungger, A Rubio, IV Tokatly - Physical Review B, 2022 - APS
The existence of pure spin currents in absence of any driving external field is commonly
considered an exotic phenomenon appearing only in quantum materials, such as …

Controlling the spin texture of topological insulators by rational design of organic molecules

S Jakobs, A Narayan, B Stadtmüller, A Droghetti… - Nano …, 2015 - ACS Publications
We present a rational design approach to customize the spin texture of surface states of a
topological insulator. This approach relies on the extreme multifunctionality of organic …

Nonequilibrium spin texture within a thin layer below the surface of current-carrying topological insulator : A first-principles quantum transport study

PH Chang, T Markussen, S Smidstrup, K Stokbro… - Physical Review B, 2015 - APS
We predict that unpolarized charge current injected into a ballistic thin film of prototypical
topological insulator (TI) Bi 2 Se 3 will generate a noncollinear spin texture S (r) on its …

Nanoscale electron transport at the surface of a topological insulator

S Bauer, CA Bobisch - Nature Communications, 2016 - nature.com
The use of three-dimensional topological insulators for disruptive technologies critically
depends on the dissipationless transport of electrons at the surface, because of the …

Perfect inverse spin Hall effect and inverse Edelstein effect due to helical spin-momentum locking in topological surface states

W Luo, WY Deng, H Geng, MN Chen, R Shen, L Sheng… - Physical Review B, 2016 - APS
We present a theory for the inverse spin Hall effect in a thin film of topological insulator (TI)
Bi 2 Se 3, connected to a reservoir with applied spin bias, in the ballistic regime. In the case …

Ab initio transport theory for the intrinsic spin Hall effect applied to metals

A Bajaj, R Gupta, IV Tokatly, S Sanvito, A Droghetti - Physical Review B, 2024 - APS
We describe how the spin Hall effect (SHE) can be studied from ab initio by combining
density functional theory with the nonequilibrium Green's functions technique for quantum …

Tight-binding model for the band dispersion in rhombohedral topological insulators over the whole Brillouin zone

CM Acosta, MP Lima, AJR da Silva, A Fazzio… - Physical Review B, 2018 - APS
We put forward a tight-binding model for rhombohedral topological insulator materials with
the space group D 3 d 5 (R 3¯ m). The model describes the bulk band structure of these …