54 citations · 330 across the 27 of their papers we have counts for
27 papers
Charge and spin qubits in interacting quantum dots coupled to Rashba-active leads
Grazia Di Bello, Fabrizio Pavan, Mattia Trama +3
We present a unified study of charge and spin qubits encoded in a single interacting quantum dot tunnel-coupled to Rashba fermionic leads. The dot is described by an Anderson impur…
transitions in non-Hermitian magnetic Josephson junctions
Roberto Capecelatro, Marco Marciani, Claudio Guarcello +3
We study the transport properties of non-Hermitian magnetic Josephson junctions, considering a superconductor-quantum dot-superconductor device coupled to a ferromagnetic metallic…
Magnetically Induced Switching-Current Jumps in InAs/Al Josephson Junctions
Ofelia Durante, Roberta Citro, Elia Strambini +8
We report Barkhausen-like switching at millitesla fields in an -doped InAs/Al nanowire Josephson junction, which serves as an interferometric probe of intrinsic magnetic reconfi…
Spin Hall and Edelstein effects in a ballistic quantum dot with Rashba spin-orbit coupling
Alfonso Maiellaro, Francesco Romeo, Mattia Trama +11
We study spin-resolved transport in a ballistic quantum dot with Rashba spin-orbit coupling, focusing on charge-to-spin conversion and spin Hall effect. In the regime where the dot…
Inhomogeneous superconductivity in (001), (110), and (111) KTaO two-dimensional electronic gases: effect of electronic confinement on the transition temperature
Mattia Trama, Roberta Citro, Carmine Antonio Perroni
Experimental observations on KTaO superconductivity report widely different critical temperatures with a clear hierarchy among different crystallographic orientations. Accounti…
Boltzmann theory of the inverse Edelstein effect in a two-dimensional Rashba gas
Irene Gaiardoni, Mattia Trama, Alfonso Maiellaro +3
We investigate the inverse Edelstein effect in a non-homogeneous system consisting of a ferromagnetic layer coupled to a Rashba two-dimensional electron gas. Within a semiclassical…
Theory of charge-to-spin conversion under quantum confinement
Alfonso Maiellaro, Francesco Romeo, Mattia Trama +6
The interplay between spin and charge degrees of freedom in low-dimensional systems is a cornerstone of modern spintronics, where achieving all-electrical control of spin currents…
Edelstein Effect in Isotropic and Anisotropic Rashba Models
Irene Gaiardoni, Mattia Trama, Alfonso Maiellaro +3
We investigate spin-to-charge conversion via the Edelstein effect in a 2D Rashba electron gas using the semiclassical Boltzmann approach. We analyze the magnetization arising from…
Non-linear anomalous Edelstein response at altermagnetic interfaces
Mattia Trama, Irene Gaiardoni, Claudio Guarcello +5
In altermagnets, time-reversal symmetry breaking spin-polarizes electronic states, while total magnetization remains zero. In addition, at altermagnetic surfaces Rashba-spin orbit…
Probing Topological Superconductivity of oxide nanojunctions using fractional Shapiro steps
Claudio Guarcello, Alfonso Maiellaro, Jacopo Settino +4
We theoretically discuss the emergence of fractional Shapiro steps in a Josephson junction created by confining a two-dimensional electron gas at an oxide interface. This phenomeno…
Josephson junctions, superconducting circuits, and qubit for quantum technologies
Roberta Citro, Claudio Guarcello, Sergio Pagano
In the realm of physics, a pivotal moment occurred six decades ago when Brian Josephson made a groundbreaking prediction, setting in motion a series of events that would eventually…
Engineered Josephson diode effect in kinked Rashba nanochannels
Alfonso Maiellaro, Mattia Trama, Jacopo Settino +3
The superconducting diode effect, reminiscent of the unidirectional charge transport in semiconductor diodes, is characterized by a nonreciprocal, dissipationless flow of Cooper pa…
Gate tunable anomalous Hall effect: a Berry curvature probe at oxides interfaces
Mattia Trama, Carmine Antonio Perroni, Vittorio Cataudella +2
The characterization and the experimental measurement of the Berry curvature in solids have become an increasingly relevant task in condensed matter physics. We present the theoret…
Spin-orbital polarization of Majorana edge states in oxides nanowires
J. Settino, F. Forte, C. A. Perroni +3
We investigate a paradigmatic case of topological superconductivity in a one-dimensional nanowire with orbitals and a strong interplay of spin-orbital degrees of freedom due to…
Evolution of topological superconductivity by orbital selective confinement in oxide nanowires
C. A. Perroni, V. Cataudella, M. Salluzzo +2
We determine the optimal conditions to achieve topological superconducting phases having spin-singlet pairing for a planar nanowire with finite lateral width in the presence of an…
Theory of a peristaltic pump for fermionic quantum fluids
F. Romeo, R. Citro
Motivated by the recent developments in fermionic cold atoms and in nanostructured systems, we propose the model of a peristaltic quantum pump. Differently from the Thouless paradi…
Universal transport dynamics in a quenched tunnel-coupled Luttinger liquid
F. M. Gambetta, F. Cavaliere, R. Citro +1
The transport dynamics of a quenched Luttinger liquid tunnel-coupled to a fermionic reservoir is investigated. In the transient dynamics, we show that for a sudden quench of the el…
Normal state electronic properties of LaOFBiS superconductors
J. D. Querales Flores, C. I. Ventura, R. Citro +1
A good description of the electronic structure of BiS-based superconductors is essential to understand their phase diagram, normal state and superconducting properties. To de…
Minimal model of point contact Andreev reflection spectroscopy of multiband superconductors
F. Romeo, R. Citro
We formulate a minimal model of point contact Andreev reflection spectroscopy of a normal- metal/multiband superconductor interface. The theory generalizes the Blonder-Tinkham-Klap…
Interaction effects in non-equilibrium transport properties of a four-terminal topological corner junction
F. Romeo, R. Citro
We study the transport properties of a four-terminal corner junction made by etching a two- dimensional topological insulator to form a quantum point contact (QPC). The QPC geometr…
Modification of the Bloch law in ferromagnetic nanostructures
S. Cojocaru, A. Naddeo, R. Citro
The temperature dependence of magnetization in ferromagnetic nanostructures (e.g., nanoparticles or nanoclusters) is usually analyzed by means of an empirical extension of the Bloc…
Electrical switching and interferometry of massive Dirac particles in topological insulators constrictions
F. Romeo, R. Citro, D. Ferraro +1
We investigate the electrical switching of charge and spin transport in a topological insulator nanoconstriction in a four terminal device. The switch of the edge channels is cause…
Electrically Controlled Pumping of Spin Currents in Topological Insulators
R. Citro, F. Romeo, N. Andrei
Pure spin currents are shown to be generated by an electrically controlled quantum pump applied at the edges of a topological insulator. The electric rather than the more conventio…
Impurity effects on Fabry-Perot physics of ballistic carbon nanotubes
F. Romeo, R. Citro, A. Di Bartolomeo
We present a theoretical model accounting for the anomalous Fabry-Perot pattern observed in the ballistic conductance of a single-wall carbon nanotubes. Using the scattering field…