293 citations · 1.9k across the 56 of their papers we have counts for
45 papers · 1 filter
Charge-Spin Conversion in Two-Subband Quantum Wells with Conventional and Unconventional Rashba Spin-Orbit Coupling
Gerson J. Ferreira, Boyu Wang, Jiyong Fu +1
The reciprocal interconversion between spin polarization and charge current (CSC) is the focus of intensive theoretical and experimental investigation in spintronics research. Its…
Semiclassical kinetic theory for systems with non-trivial quantum geometry and the expectation value of physical quantities
Thierry Valet, Roberto Raimondi
Starting from the Keldysh theory, for a general low energy -band Hamiltonian in the clean limit, we perform a manifestly gauge invariant semiclassica…
Spin Hall and inverse spin galvanic effects in graphene with strong interfacial spin-orbit coupling: a quasi-classical Green's function approach
Carmen Monaco, Aires Ferreira, Roberto Raimondi
van der Waals heterostructures assembled from atomically thin crystals are ideal model systems to study spin-orbital coupled transport because they exhibit a strong interplay betwe…
Spin drift-diffusion for two-subband quantum wells
I. R. de Assis, R. Raimondi, G. J. Ferreira
Controlling the spin dynamics and spin lifetimes is one of the main challenges in spintronics. To this end, the study of the spin diffusion in two-dimensional electron gases (2DEGs…
Quantum noise in the spin transfer torque effect
Camillo Tassi, Marco Barbieri, Roberto Raimondi
Describing the microscopic details of the interaction of magnets and spin-polarized currents is key to achieve control of such systems at the microscopic level. Here we discuss a d…
Theory of charge-spin conversion at oxide interfaces: The inverse spin-galvanic effect
Goetz Seibold, Sergio Caprara, Roberto Raimondi
We evaluate the non-equilibrium spin polarization induced by an applied electric field for a tight-binding model of electron states at oxides interfaces in LAO/STO heterostructures…
Theory of the inverse spin galvanic effect in quantum wells
Amin Maleki Sheikhabadi, Iryna Miatka, E. Ya. Sherman +1
The understanding of the fundamentals of spin and charge densities and currents interconversion by spin-orbit coupling can enable efficient applications beyond the possibilities of…
Microscopic linear response theory of spin relaxation and relativistic transport phenomena in graphene
Manuel Offidani, Roberto Raimondi, Aires Ferreira
We present a unified theoretical framework for the study of spin dynamics and relativistic transport phenomena in disordered two-dimensional Dirac systems with pseudospin-spin coup…
Role of phonon skew scattering in the spin Hall effect of platinum
G. V. Karnad, C. Gorini, K. Lee +11
We measure and analyze the effective spin Hall angle of platinum in the low residual resistivity regime by second harmonic measurements of the spin-orbit torques for a multilayer o…
Theory of the spin galvanic effect at oxide interfaces
G. Seibold, S. Caprara, M. Grilli +1
The spin galvanic effect (SGE) describes the conversion of a non-equilibrium spin polarization into a transverse charge current. Recent experiments have demonstrated a large conver…
Optimal charge-to-spin conversion in graphene on transition metal dichalcogenides
Manuel Offidani, Mirco Milletarí, Roberto Raimondi +1
When graphene is placed on a monolayer of semiconducting transition metal dichalcogenide (TMD) its band structure develops rich spin textures due to proximity spin-orbital effects…
Covariant conservation laws and the spin Hall effect in Dirac-Rashba systems
Mirco Milletari, Manuel Offidani, Aires Ferreira +1
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…
Inverse spin galvanic effect in the presence of impurity spin-orbit scattering: a diagrammatic approach
Amin Maleki, Roberto Raimondi
Spin-charge interconversion is currently the focus of intensive experimental and theoretical research both for its intrinsic interest and for its potential exploitation in the real…
Theory of current-induced spin polarizations in an electron gas
Cosimo Gorini, Amin Maleki, Ka Shen +3
We derive the Bloch equations for the spin dynamics of a two-dimensional electron gas in the presence of spin-orbit coupling. For the latter we consider both the intrinsic mechanis…
Spin-charge coupling effects in a two-dimensional electron gas
Roberto Raimondi, Cosimo Gorini, Sebastian Tölle
In these lecture notes we study the disordered two-dimensional electron gas in the presence of Rashba spin-orbit coupling, by using the Keldysh non-equilibrium Green function techn…
The Edelstein effect in the presence of impurity spin-orbit scattering
Amin Maleki, Roberto Raimondi, Ka Shen
In this paper we study the current-induced spin polarization in a two-dimensional electron gas, known also as the Edelstein effect. Compared to previous treatments, we consider bot…
Spin polarization induced by an electric field in the presence of weak localization effects
Daniele Guerci, Juan Borge, Roberto Raimondi
We evaluate the spin polarization (Edelstein or inverse spin galvanic effect) and the spin Hall current induced by an applied electric field by including the weak localization corr…
Spin current swapping and Hanle spin Hall effect in the two dimensional electron gas
Ka Shen, R. Raimondi, G. Vignale
We analyze the effect known as "spin current swapping" (SCS) due to electron-impurity scattering in a uniform spin-polarized two-dimensional electron gas. In this effect a primary…
Spin Hall effects due to phonon skew scattering
Cosimo Gorini, Ulrich Eckern, Roberto Raimondi
A diversity of spin Hall effects in metallic systems is known to rely on Mott skew scattering. In this work its high-temperature counterpart, phonon skew scattering, which is expec…
Current enhancement through a time dependent constriction in fractional topological insulators
Giacomo Dolcetto, Luca Vannucci, Alessandro Braggio +2
We analyze the backscattering current induced by a time dependent constriction as a tool to probe fractional topological insulators. We demonstrate an enhancement of the total curr…
Theory of coupled spin-charge transport due to spin-orbit interaction in inhomogeneous two-dimensional electron liquids
K. Shen, R. Raimondi, G. Vignale
Spin-orbit interactions in two-dimensional electron liquids are responsible for many interesting transport phenomena in which particle currents are converted to spin polarizations…
Spin Hall and Edelstein effects in metallic films: from 2D to 3D
J. Borge, C. Gorini, G. Vignale +1
A normal metallic film sandwiched between two insulators may have strong spin-orbit coupling near the metal-insulator interfaces, even if spin-orbit coupling is negligible in the b…
Inverse Edelstein Effect
Ka Shen, G. Vignale, R. Raimondi
We provide a precise microscopic definition of the recently observed "Inverse Edelstein Effect" (IEE), in which a non-equilibrium spin accumulation in the plane of a two-dimensiona…
Intrinsic Spin Hall Effect at Oxide Interfaces: a Simple Model
Lorien H. Hayden, R. Raimondi, M. E. Flatte' +1
An asymmetric triangular potential well provides the simplest model for the confinement of mobile electrons at the interface between two insulating oxides, such as LaAlO_3 and SrTi…