91 citations · 202 across the 4 of their papers we have counts for
4 papers
Magnetic-field dependence of a Josephson traveling-wave parametric amplifier and integration into a high-field setup
L. M. Janssen, G. Butseraen, J. Krause +6
We investigate the effect of magnetic field on a photonic-crystal Josephson traveling-wave parametric amplifier (TWPA). We show that the observed change in photonic bandgap and pla…
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…
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…
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…