85 citations · 366 across the 10 of their papers we have counts for
10 papers
Phase separation from electron confinement at oxide interfaces
N. Scopigno, D. Bucheli, S. Caprara +4
Oxide heterostructures are of great interest both for fundamental and applicative reasons. In particular the two-dimensional electron gas at the LaAlO/SrTiO or LaTiO/Sr…
Inhomogeneous multi-carrier superconductivity at LaXO3/SrTiO3 (X=Al or Ti) oxide interfaces
S. Caprara, D. Bucheli, N. Scopigno +5
Several experiments reveal the inhomogeneous character of the superconducting state that occurs when the carrier density of the two-dimensional electron gas formed at the LaXO3/SrT…
Possible mechanisms of electronic phase separation in oxide interfaces
N. Bovenzi, F. Finocchiaro, N. Scopigno +4
LaAlO3/SrTiO3 ad LaTiO3/SrTiO3 interfaces are known to host a strongly inhomogeneous (nearly) two-dimensional electron gas (2DEG). In this work we present three unconventional elec…
Phase separation and long wave-length charge instabilities in spin-orbit coupled systems
G. Seibold, D. Bucheli, S. Caprara +1
We investigate a two-dimensional electron model with Rashba spin-orbit interaction where the coupling constant depends on the electronic density. It is shown that this dep…
Pseudo-gap in tunneling spectra as a signature of inhomogeneous superconductivity in oxide interfaces
D. Bucheli, S. Caprara, M. Grilli
We present a theory for the pseudo-gap state recently observed at the LaAlO3/SrTiO3 interface, based on superconducting islands embedded in a metallic background. Superconductivity…
Optical excitation of phase modes in strongly disordered superconductors
T. Cea, D. Bucheli, G. Seibold +3
According to the Goldstone theorem the breaking of a continuous U(1) symmetry comes along with the existence of low-energy collective modes. In the context of superconductivity the…
Phase diagrams of voltage-gated oxide interfaces with strong Rashba coupling
D. Bucheli, M. Grilli, F. Peronaci +2
We propose a model for the two-dimensional electron gas formed at the interface of oxide heterostructures that includes a Rashba spin-orbit coupling proportional to an electric fie…
Multi-band superconductivity and nanoscale inhomogeneity at oxide interfaces
S. Caprara, J. Biscaras, N. Bergeal +7
The two-dimensional electron gas at the LaTiO3/SrTiO3 or LaAlO3/SrTiO3 oxide interfaces becomes superconducting when the carrier density is tuned by gating. The measured resistance…
Universal scaling of the order-parameter distribution in strongly disordered superconductors
G. Lemarié, A. Kamlapure, D. Bucheli +6
We investigate theoretically and experimentally the statistical properties of the inhomogeneous order-parameter distribution (OPD) at the verge of the superconductor-insulator tran…
Metal-superconductor transition in two-dimensional electron systems with fractal-like mesoscopic disorder
D. Bucheli, S. Caprara, C. Castellani +1
Motivated by recent experimental data on thin film superconductors and oxide interfaces we propose a random-resistor network apt to describe the occurrence of a metal-superconducto…