Inter-valley coherent order and isospin fluctuation mediated superconductivity in rhombohedral trilayer graphene
Superconductivity was recently discovered in rhombohedral trilayer graphene (RTG) in the
absence of a moiré potential. Superconductivity is observed proximate to a metallic state …
absence of a moiré potential. Superconductivity is observed proximate to a metallic state …
Overdo** graphene beyond the van Hove singularity
P Rosenzweig, H Karakachian, D Marchenko… - Physical Review Letters, 2020 - APS
At very high do** levels the van Hove singularity in the π* band of graphene becomes
occupied and exotic ground states possibly emerge, driven by many-body interactions …
occupied and exotic ground states possibly emerge, driven by many-body interactions …
Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene
We study superconductivity of twisted bilayer graphene with local and nonlocal attractive
interactions. We obtain the superfluid weight and Berezinskii-Kosterlitz-Thouless (BKT) …
interactions. We obtain the superfluid weight and Berezinskii-Kosterlitz-Thouless (BKT) …
Unconventional superconductivity in systems with annular fermi surfaces: Application to rhombohedral trilayer graphene
We show that in a two-dimensional electron gas with an annular Fermi surface, long-range
Coulomb interactions can lead to unconventional superconductivity by the Kohn-Luttinger …
Coulomb interactions can lead to unconventional superconductivity by the Kohn-Luttinger …
Bogoliubov Fermi surfaces in superconductors with broken time-reversal symmetry
DF Agterberg, PMR Brydon, C Timm - Physical review letters, 2017 - APS
It is commonly believed that, in the absence of disorder or an external magnetic field, there
are three possible types of superconducting excitation gaps: The gap is nodeless, it has …
are three possible types of superconducting excitation gaps: The gap is nodeless, it has …
Pair-density-wave and chiral superconductivity in twisted bilayer transition metal dichalcogenides
We theoretically explore possible orders induced by weak repulsive interactions in twisted
bilayer transition metal dichalcogenides (eg, WSe 2) in the presence of an out-of-plane …
bilayer transition metal dichalcogenides (eg, WSe 2) in the presence of an out-of-plane …
Competing orders at higher-order Van Hove points
Van Hove points are special points in the energy dispersion, where the density of states
exhibits analytic singularities. When a Van Hove point is close to the Fermi level, tendencies …
exhibits analytic singularities. When a Van Hove point is close to the Fermi level, tendencies …
Correlated metals and unconventional superconductivity in rhombohedral trilayer graphene: A renormalization group analysis
Motivated by recent experimental observations of correlated metallic phases and
superconductivity in rhombohedral trilayer graphene (RTG), we perform an unbiased study …
superconductivity in rhombohedral trilayer graphene (RTG), we perform an unbiased study …
Evidence for chiral superconductivity on a silicon surface
Tin adatoms on a Si (111) substrate with a one-third monolayer coverage form a two-
dimensional triangular lattice with one unpaired electron per site. These electrons order into …
dimensional triangular lattice with one unpaired electron per site. These electrons order into …
Bogoliubov Fermi surfaces: General theory, magnetic order, and topology
We present a comprehensive theory for Bogoliubov Fermi surfaces in inversion-symmetric
superconductors which break time-reversal symmetry. A requirement for such a gap …
superconductors which break time-reversal symmetry. A requirement for such a gap …