Optimal charge-to-spin conversion in graphene on transition-metal dichalcogenides

M Offidani, M Milletarì, R Raimondi, A Ferreira - Physical review letters, 2017 - APS
When graphene is placed on a monolayer of semiconducting transition metal
dichalcogenide (TMD) its band structure develops rich spin textures due to proximity spin …

Gate-Tunable Reversible Rashba–Edelstein Effect in a Few-Layer Graphene/2H-TaS2 Heterostructure at Room Temperature

L Li, J Zhang, G Myeong, W Shin, H Lim, B Kim, S Kim… - ACS …, 2020 - ACS Publications
We report the observation of current-induced spin polarization, the Rashba–Edelstein effect
(REE), and its Onsager reciprocal phenomenon, the spin galvanic effect (SGE), in a few …

Gyrotropic Hall effect in Berry-curved materials

EJ König, M Dzero, A Levchenko, DA Pesin - Physical Review B, 2019 - APS
We study the ac Hall response induced by passage of dc transport current in two-and three-
dimensional metals with gyrotropic point groups—the gyrotropic Hall effect—and consider …

Spin Hall effect and origins of nonlocal resistance in adatom-decorated graphene

D Van Tuan, JM Marmolejo-Tejada, X Waintal… - Physical review …, 2016 - APS
Recent experiments reporting an unexpectedly large spin Hall effect (SHE) in graphene
decorated with adatoms have raised a fierce controversy. We apply numerically exact Kubo …

Spintronics in 2D graphene-based van der Waals heterostructures

DTS Perkins, A Ferreira - arXiv preprint arXiv:2307.06273, 2023 - arxiv.org
Spintronics has become a broad and important research field that intersects with magnetism,
nano-electronics, and materials science. Its overarching aim is to provide a fundamental …

Covariant conservation laws and the spin Hall effect in Dirac-Rashba systems

M Milletarì, M Offidani, A Ferreira, R Raimondi - Physical review letters, 2017 - APS
We present a theoretical analysis of two-dimensional Dirac-Rashba systems in the presence
of disorder and external perturbations. We unveil a set of exact symmetry relations (Ward …

Charge, spin and valley Hall effects in disordered graphene

A Cresti, BK Nikolić, JH García, S Roche - La Rivista del Nuovo Cimento, 2016 - Springer
The discovery of the integer quantum Hall effect in the early eighties of the last century, with
highly precise quantization values for the Hall conductance in multiples of e 2/h, has been …

Anomalous Hall effect in 2D Dirac materials

M Offidani, A Ferreira - Physical Review Letters, 2018 - APS
We present a unified theory of charge carrier transport in 2D Dirac systems with broken
mirror inversion and time-reversal symmetries (eg, as realized in ferromagnetic graphene) …

Sensitivity of the anomalous Hall effect to disorder correlations

IA Ado, IA Dmitriev, PM Ostrovsky, M Titov - Physical Review B, 2017 - APS
Both longitudinal and anomalous Hall conductivities are computed in the model of two-
dimensional Dirac fermions with a mass in the presence of weak Gaussian spin …

Skew-scattering-induced giant antidamping spin-orbit torques: Collinear and out-of-plane Edelstein effects at two-dimensional material/ferromagnet interfaces

F Sousa, G Tatara, A Ferreira - Physical Review Research, 2020 - APS
Heavy metal/ferromagnet interfaces feature emergent spin-orbit effects absent in the bulk
materials. Because of their inherent strong coupling between spin, charge, and orbital …