225 citations · 1k across the 21 of their papers we have counts for
22 papers
Multigap superconductivity in Ising superconductors: The case of (LaSe)1.14(NbSe2)m misfit layer compounds
Alexandra Palacio-Morales, Tomas Samuely, Ludovica Zullo +14
Strong spin-orbit coupling and broken inversion symmetry in transition metal dichalcogenides give rise to Ising superconductivity, a spin-protected pairing state first identified i…
Doping-controlled topological superconducting transition in misfit layer compounds
Hugo Le Du, Robin Salvatore, Justine Cordiez +12
Achieving topological superconductivity is a key goal in quantum physics, offering a path to fault-tolerant quantum computers. A central challenge in this field is to continuously…
Doping tunable charge density waves in misfit layer compounds
Hugo Le Du, Ludovica Zullo, Justine Cordiez +14
The ability to tune charge density waves (CDWs) through external control knobs, such as doping, pressure or strain is crucial for exploring the phase diagram of two dimensional (2D…
Antiferromagnetic stripe phase and large-gap insulating ground state of the correlated ~R30-Sn/Si(111) single atomic layer
Mohammadmehdi Torkzadeh, Mattia Iannetti, Mathieu Lizée +10
The one-third monolayer Sn layer on Si(111) has long been considered a benchmark system for exploring two-dimensional Mott physics, owing to its narrow bandwidth and sizable on-sit…
Anderson transition symmetries at the band-edge of a correlated Sn/Si monolayer
Mathieu Lizée, Mohammadmehdi Torkzadeh, François Debontridder +4
Anderson localization is predicted to enhance the critical temperature of disordered superconductors. Despite a huge body of theoretical work based on non-linear sigma models, expe…
Superconducting and spin-density wave phases probed by scanning tunneling spectroscopy in the organic conductor
Mohammadmehdi Torkzadeh, Pascale Senzier, Claude Bourbonnais +9
By scanning tunneling microscopy (STM) we have probed the local quasi-particle density of states (DOS) of the Bechgaard salt organic superconductor in…
Higher order topological defects in a moiré lattice
Eugenio Gambari, Sebastian Meyer, Sacha Guesne +8
Topological defects are ubiquitous, they manifest in a wide variety of systems such as liquid crystals, magnets or superconductors. The recent quest for nonabelian anyons in conden…
On the importance of measuring accurately LDOS maps using scanning tunneling spectroscopy in materials presenting atom-dependent charge order: the case of the correlated Pb/Si(111) single atomic layer
C. Tresca, T. Bilgeri, G. Menard +11
We show how to properly extract the local charge order in two-dimensional materials from scanning tunneling microscopy/spectroscopy (STM/STS) measurements. When the charge order pr…
Misfit layer compounds: a platform for heavily-doped two-dimensional transition metal dichalcogenides
Raphaël T. Leriche, Alexandra Palacio-Morales, Marco Campetella +14
Transition metal dichalcogenides (TMDs) display a rich variety of instabilities such as spin and charge orders, Ising superconductivity and topological properties. Their physical p…
Spectroscopic evidence for strong correlations between local superconducting gap and local Altshuler-Aronov density-of-states suppression in ultrathin NbN films
C. Carbillet, V. Cherkez, M. A. Skvortsov +10
Disorder has different profound effects on superconducting thin films. For a large variety of materials, increasing disorder reduces electronic screening which enhances electron-el…
Isolated pairs of Majorana zero modes in a disordered superconducting lead monolayer
Gerbold Ménard, Andrej Mesaros, Christophe Brun +4
Majorana zero modes are fractional quantum excitations appearing in pairs, each pair being a building block for quantum computation . Some possible signatures of these excitations…
Yu-Shiba-Rusinov bound states versus topological edge states in Pb/Si(111)
Gerbold C. Ménard, Christophe Brun, Raphaël Leriche +6
There is presently a tremendous activity around the field of topological superconductivity and Majorana fermions. Among the many questions raised, it has become increasingly import…
Two-dimensional topological superconductivity in Pb/Co/Si(111)
Gerbold C. Ménard, Sébastien Guissart, Christophe Brun +7
Just like insulators can host topological Dirac states at their edges, superconductors can also exhibit topological phases characterized by Majorana edge states. Remarkable zero-en…
Confinement of superconducting fluctuations due to emergent electronic inhomogeneities
C. Carbillet, S. Caprara, M. Grilli +11
The microscopic nature of an insulating state in the vicinity of a superconducting state, in the presence of disorder, is a hotly debated question. While the simplest scenario prop…
Long range coherent magnetic bound states in superconductors
Gerbold C. Ménard, Sébastien Guissart, Christophe Brun +9
The quantum coherent coupling of completely different degrees of freedom is a challenging path towards creating new functionalities for quantum electronics. Usually the antagonisti…
Proximity effect between two superconductors spatially resolved by scanning tunneling spectroscopy
V. Cherkez, J. C. Cuevas, C. Brun +5
We present a combined experimental and theoretical study of the proximity effect in an atomic-scale controlled junction between two different superconductors. Elaborated on a Si(11…
Scanning tunneling spectroscopy study of the proximity effect in a disordered two-dimensional metal
L. Serrier-Garcia, J. C. Cuevas, T. Cren +6
The proximity effect between a superconductor and a highly diffusive two-dimensional metal was revealed in a Scanning Tunneling Spectroscopy experiment. The in-situ elaborated samp…
Remarkable effects of disorder on superconductivity of single atomic layers of lead on silicon
C. Brun, T. Cren, V. Cherkez +8
In bulk materials superconductivity is remarkably robust with respect to non-magnetic disorder. In the two-dimensional limit however, the quantum condensate suffers from the effect…
Break-up of long-range coherence due to phase fluctuations in ultrathin superconducting NbN films
Y. Noat, T. Cren, C. Brun +7
Using scanning tunneling spectroscopy (STS), we address the problem of the superconductor-insulator phase transition (SIT) in homogeneously disordered ultrathin (2-15 nm) films of…
Electric pulse induced electronic patchwork in the Mott insulator GaTaSe
Vincent Dubost, Tristan Cren, François Debontridder +6
Following a recent discovery of the Insulator-to-Metal Transition induced by electric field in GaTaSe, we performed a detailed Scanning Tunneling Microscopy/Spectroscop…
Disorder effects in pnictides : a tunneling spectroscopy study
Y. Noat, T. Cren, V. Dubost +6
We present the synthesis and the tunneling spectroscopy study of superconducting FeSe0.5Te0.5 (Tc = 14 K), SmFeAsO0.85 (Tc = 45 K) and SmFeAsO0.9F0.1 (Tc = 52 K). The samples were…
Evidence for Scattering-Dependent Multigap Superconductivity in Ba8Si46
Yves Noat, Tristan Cren, Pierre Toulemonde +4
We have studied the quasiparticle excitation spectrum of the superconductor Ba8Si46 by local tunneling spectroscopy. Using high energy resolution achieved in Superconductor-Superco…