91 citations · 466 across the 12 of their papers we have counts for
14 papers
Absence of edge reconstruction for quantum Hall edge channels in graphene devices
Alexis Coissard, Adolfo G. Grushin, Cécile Repellin +7
Electronic edge states in topological insulators have become a major paradigm in physics. The oldest and primary example is that of quantum Hall (QH) edge channels that propagate a…
Hidden Granular Superconductivity Above 500K in off-the-shelf graphite materials
Raphael Rousset-Zenou, Samar Layek, Miguel Monteverde +3
It has been reported that graphite hosts room temperature superconductivity. Here we provide new results that confirm these claims on different samples of highly oriented pyrolytic…
Possible high temperature superconducting transitions in disordered graphite obtained from room temperature deintercalated KC
Samar Layek, Miguel Monteverde, Gastón Garbarino +13
Although progress with twisted graphene nano-devices is boosting the superconductivity that is the consequence of their Moiré flat electronic bands, the immense choice for future d…
Imaging tunable quantum Hall broken-symmetry orders in graphene
Alexis Coissard, David Wander, Hadrien Vignaud +9
When electrons populate a flat band their kinetic energy becomes negligible, forcing them to organize in exotic many-body states to minimize their Coulomb energy. The zeroth Landau…
Inpainting-based Video Compression in FullHD
Sarah Andris, Pascal Peter, Rahul Mohideen Kaja Mohideen +2
Compression methods based on inpainting are an evolving alternative to classical transform-based codecs for still images. Attempts to apply these ideas to video compression are rar…
Successive incommensurate spin orderings and excitations in multiferroic SrMnGe2O6
Claire V. Colin, Lei Ding, Eric Ressouche +8
Anisotropic multiferroic properties of SrMnGe2O6 pyroxene single crystals were systematically investigated by means of magnetization, heat capacity, pyroelectric current measuremen…
Helical quantum Hall phase in graphene on SrTiO
Louis Veyrat, Corentin Déprez, Alexis Coissard +8
The ground state of charge neutral graphene under perpendicular magnetic field was predicted to be a quantum Hall topological insulator with a ferromagnetic order and spin-filtered…
Field-induced double spin spiral in a frustrated chiral magnet
M. Ramakrishnan, E. Constable, A. Cano +14
We report the direct observation of a magnetic-feld induced long-wavelength spin spiral modulation in the chiral compound Ba3TaFe3Si2O14. This new spin texture emerges out of a chi…
Low Magnetic Field Regime of a Gate-Defined Constriction in High-Mobility Graphene
Louis Veyrat, Anna Jordan, Katrin Zimmermann +5
We report on the evolution of the coherent electronic transport through a gate-defined constriction in a high-mobility graphene device from ballistic transport to quantum Hall regi…
Extreme Sensitivity of the Superconducting State in Thin Films
I. Tamir, A. Benyamini, E. J. Telford +12
All non-interacting two-dimensional electronic systems are expected to exhibit an insulating ground state. This conspicuous absence of the metallic phase has been challenged only i…
Joule overheating poisons the fractional ac Josephson effect in topological Josephson junctions
K. Le Calvez, L. Veyrat, F. Gay +4
Topological Josephson junctions designed on the surface of a 3D-topological insulator (TI) harbor Majorana bound states (MBS's) among a continuum of conventional Andreev bound stat…
Quantum meets classical phase transition: Low-temperature anomaly in disordered superconductors near
B. Sacépé, J. Seidemann, F. Gay +5
Strongly disordered superconductors in a magnetic field display many characteristic properties of type-II superconductivity--- except at low temperatures where an anomalous linear…
Tunable transmission of quantum Hall edge channels with full degeneracy lifting in split-gated graphene devices
Katrin Zimmermann, Anna Jordan, Frédéric Gay +6
Charge carriers in the quantum Hall regime propagate via one-dimensional conducting channels that form along the edges of a two-dimensional electron gas. Controlling their transmis…
Anomalous field effect and glassy behaviour in granular aluminium thin films: electron glass?
Thierry Grenet, Julien Delahaye, Maher Sabra +1
We present a study of non-equilibrium phenomena observed in the electrical conductance of insulating granular aluminium thin films. An anomalous field effect and its slow relaxatio…