189 citations · 1.1k across the 27 of their papers we have counts for
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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…
Quantization in chiral higher order topological insulators: circular dichroism and local Chern marker
Oscar Pozo, Cécile Repellin, Adolfo G. Grushin
The robust quantization of observables in units of universal constants is a hallmark of topological phases. We show that chiral higher order topological insulators (HOTIs), bulk in…