6 papers
Is disorder a friend or a foe to melting of Wigner-Mott insulators?
Mohammed Hammam, Cyprian Lewandowski, Vladimir Dobrosavljevic +1
Wigner crystals are extremely fragile, which is shown to result from very strong geometric frustration germane to long-range Coulomb interactions. Physically, this is manifested by…
Superconductivity from dual-surface carriers in rhombohedral graphene
Manish Kumar, Derek Waleffe, Anna Okounkova +7
Intrinsic rhombohedral graphene hosts an unusual low-energy electronic wavefunction, predominantly localized at its outer crystal faces with negligible presence in the bulk. Increa…
Tunable interplay of orbital and spin magnetization in trigonal tellurium
Zhenqi Hua, Chang Niu, Sandeep Joy +8
Orbital effects, despite their fundamental significance and potential to engender novel physical phenomena and enable new applications, have long been underexplored compared to the…
Coulomb Interaction-Stabilized Isolated Narrow Bands with Chern Numbers in Twisted Rhombohedral Trilayer-Bilayer Graphene
Vo Tien Phong, Cyprian Lewandowski
Recently, fractional quantum anomalous Hall effects have been discovered in two-dimensional moiré materials when a topologically nontrivial band with Chern number i…
Single-gate tracking behavior in flat-band multilayer graphene devices
Kryštof Kolář, Dacen Waters, Joshua Folk +2
A central feature of many van der Waals (vdW) materials is the ability to precisely control their charge doping, , and electric displacement field, , using top and bottom gat…
Origin and stability of generalized Wigner crystallinity in triangular moiré systems
Aman Kumar, Cyprian Lewandowski, Hitesh J. Changlani
Generalized Wigner crystals (GWC) on triangular moiré superlattices, formed from stacking two layers of transition metal chalcogenides, have been observed at multiple fractional fi…