Chiral superconductivity from repulsive interactions in doped graphene

Abstract

We identify graphene as a system where chiral superconductivity can be realized. Chiral superconductivity involves a pairing gap that winds in phase around the Fermi surface, breaking time reversal symmetry. We consider a unique situation arising in graphene at a specific level of doping, where the density of states is singular, strongly enhancing the critical temperature T_c. At this doping level, the Fermi surface is nested, allowing superconductivity to emerge from repulsive electron-electron interactions. We show using a renormalization group method that superconductivity dominates over all competing orders for any choice of weak repulsive interactions. Superconductivity develops in a doubly degenerate, spin singlet channel, and a mean field calculation indicates that the superconductivity is of a chiral d+id type. We therefore predict that doped graphene can provide experimental realization of spin-singlet chiral superconductivity.

References in corpus (13)

• The electronic properties of graphene
• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Scalar spin chirality and quantum Hall effect on a triangular lattice
• Non-Abelian Topological Orders and Majorana Fermions in Spin-Singlet Superconductors
• Density waves and Cooper pairing on the honeycomb lattice
• Kohn-Luttinger superconductivity in graphene
• Unconventional superconductivity on honeycomb lattice: the theory of Kekule order parameter
• Renormalization group flow, competing phases, and the structure of superconducting gap in multi-band models of Iron based superconductors
• Spontaneous quantum Hall effect in quarter-doped Hubbard model on honeycomb lattice and its possible realization in quarter-doped graphene system
• Spin-density-wave instability in graphene doped near the van Hove singularity
• Superconducting phase with a chiral $f$-wave pairing symmetry and Majorana fermions induced in a hole-doped semiconductor
• Pomeranchuk instability in doped graphene
• Quantum phase transitions in $d-wave$ superconductors

Cited by in corpus (444)

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• Spin excitations in the heavily overdoped monolayer graphene superconductor: an analog to the cuprates
• A Simple Mechanism for Unconventional Superconductivity in a Repulsive Fermion Model
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• Interaction-driven first-order and higher-order topological superconductivity
• Orbital-Active Dirac Materials from the Symmetry Principle
• Superconducting properties of lithium-decorated bilayer graphene
• Making Chiral Topological Superconductivities from Non-topological Superconductivities Through the Twist
• Phase diagram of the Hubbard model on a honeycomb lattice: A cluster slave-spin study
• Prediction of $f$-wave pairing symmetry in YBa${}_2$Cu${}_3$O${}_{6+x}$ cuprates
• Dynamical spin susceptibility of spin-valley half-metal
• Time-reversal symmetry breaking superconductivity in hole-doped monolayer MoS${}_2$
• Thermal Hall Conductivity in Superconducting Phase on Kagome Lattice
• Effective Field Theory of 2D van Hove Singularities
• Quantum-metric-induced giant and reversible nonreciprocal transport phenomena in chiral loop-current phases of kagome metals
• Triplet superconductivity in coupled odd-gon rings
• Accessing topological superconductivity via a combined STM and renormalization group analysis
• Wilsonian effective field theory of 2D van Hove singularities
• Inducing chiral superconductivity on honeycomb lattice systems
• $d+id$ chiral superconductivity in a triangular lattice from trigonal bipyramidal complexes
• Superconducting Phases in Lithium Decorated Graphene LiC 6
• Kohn-Luttinger superconductivity in monolayer and bilayer semimetals with the Dirac spectrum
• Possible instabilities in quadratic and cubic nodal line fermion systems with correlated interactions
• Chiral d-wave superconducting state in the core of a doubly quantized s-wave vortex in graphene
• Superconducting proximity effect in flat band systems
• Impurity induced current in a Chern insulator
• Quantum criticality of fermion velocities and critical temperature nearby a putative quantum phase transition in the $d$-wave superconductors
• Nodal Nematic Superconductivity in Multiple-Flat-Band Land
• Persistent Friedel oscillations in Graphene due to a weak magnetic field
• Possible high temperature odd parity superconductivity in LaNi${}_{7/8}$Co${}_{1/8}$O${}_3$ (111) bilayers
• From chiral d-wave to nodal line superconductivity in the harmonic honeycomb lattices
• Local characterization and engineering of proximitized correlated states in graphene-NbSe${}_2$ vertical heterostructures
• Friedel oscillations and chiral superconductivity in monolayer NbSe${}_2$
• Weak localization measurements of electronic scattering rates in Li-doped epitaxial graphene
• Topological Phases in Nodeless Tetragonal Superconductors
• Impurity-induced pairing in two-dimensional Fermi gases
• Half-quantum vortices on c-axis domain walls in chiral p-wave superconductors
• Mass inversion at the Lifshitz transition in monolayer graphene by diffusive, high-density, on-chip, doping
• In-situ topotactic chemical reaction for spectroscopies
• Half-metallic magnetization plateaux
• Theories for charge-driven nematicity in kagome metals
• Electronic Raman response of a superconductor across a time reversal symmetry breaking phase transition
• Prediction and description of a chiral pseudogap phase
• Triplet $p$-wave pairing correlation in low doped zigzag graphene nanoribbons
• Superconducting gap anisotropy and topological singularities due to lattice translational symmetry and their thermodynamic signatures
• Nematic and time-reversal breaking superconductivities coexisting with quadrupole order in a ${\Gamma }_3$ system
• Non-Quantized Edge Channel Conductance and Zero Conductance Fluctuation in Non-Hermitian Chern Insulators
• Designer fermion models in functionalized graphene bilayers
• Non-adiabatic dynamics in d+id-wave fermionic superfluids
• Friedel oscillation near a van Hove singularity in two-dimensional Dirac materials
• Anomalous superconductivity and superfluidity in repulsive fermion systems
• Probing Layer Localization in Twisted Graphene Bilayers via Cyclotron Resonance
• Incommensurate magnetic states induced by ordering competition in $\mathrm{B}{\mathrm{a}}_{1-\mathrm{x}}\mathrm{N}{\mathrm{a}}_{\mathrm{x}}\mathrm{F}{\mathrm{e}}_2\mathrm{A}{\mathrm{s}}_2$
• The vortex core excitation spectrum in gapped topological d-wave superconductors
• Low-energy effective theory and symmetry classification of flux phases on Kagome lattice
• Consistent combination of truncated-unity functional renormalization group and mean-field theory
• Symmetry Aspects of Chiral Superconductors
• Mixed-parity superconductivity near Lifshitz transitions in strongly spin-orbit-coupled metals
• Bilayer honeycomb lattice with ultracold atoms: Multiple Fermi surfaces and incommensurate spin density wave instability
• Quasiparticles near domain walls in hexagonal superconductors
• Dichotomy of saddle points in energy bands of a monolayer NbSe${}_2$
• Interaction effects in graphene in a weak magnetic field
• Correlated physics in an artificial triangular anti-dot lattice
• Differential entropy per particle as a probe of van Hove singularities and flat bands
• The role of electromagnetic gauge-field fluctuations in the selection between chiral and nematic superconductivity
• Fermion-fermion interaction driven phase transitions in rhombohedral trilayer graphene
• Charge-density wave fluctuation driven composite order in the layered Kagome Metals
• Fate of superconductivity in disordered Dirac and semi-Dirac semimetals
• Band theory for heterostructures with interface superlattices
• Saddle point singularity and topological phase diagram in a tunable topological crystalline insulator (TCI)
• Observation of a van Hove singularity and implication for strong coupling induced Cooper pairing in KFe2As2
• Phenomenological theory of the superconducting state inside the hidden-order phase of URu${}_2$Si${}_2$
• Role of Hund's splitting in electronic phase competition in ${\mathrm{Pb}}_{1-x}{\mathrm{Sn}}_x\mathrm{Te}$
• Anomalous Hall Effects in Chiral Superconductors
• Topological orbital superfluid with chiral d-wave order in a rotating optical lattice
• Engineering subgap states in superconductors by the symmetry of altermagnetism
• Robust topological superconductivity in spin-orbit coupled systems at higher-order van Hove filling
• Mean-field analysis of a Hubbard interaction on Bernal Bilayer Graphene
• Quantum phase transitions on the hexagonal lattice
• Fractionalized Superconductivity Mediated by Majorana Fermions in the Kitaev-Kondo Lattice
• Critical behavior around the fixed points driven by fermion-fermion interactions and disorders in the nodal-line superconductors
• Determination of Gap Solution and Critical Temperature in Doped Graphene Superconductivity
• Disorder-induced currents as signatures of chiral superconductivity
• Effect of the long-range Coulomb interaction on phase diagram of the Kohn-Luttinger superconducting state in idealized graphene
• Precursory Cooper Flow in Ultralow-Temperature Superconductors
• Entanglement spectra of superconductivity ground states on the honeycomb lattice
• Evidence of electron-electron interactions around Van Hove singularities of a graphene Moiré superlattice
• Nematicity Arising from a Chiral Superconducting Ground State in Magic-Angle Twisted Bilayer Graphene under In-Plane Magnetic Fields
• Bulk-boundary correspondence in Josephson Junctions
• Competing effects of Hund's splitting and symmetry-breaking perturbations on electronic order in Pb${}_{1-x}$Sn${}_x$Te
• Chiral universality class of the normal-superconducting and the exciton condensation transition on the surface of topological insulator
• Moiré surface states and enhanced superconductivity in topological insulators
• Kohn-Luttinger-like mechanism for unconventional charge density waves
• Possible Electric-Field-Induced Superconducting States in Doped Silicene
• Kekulé order from diffuse nesting near higher-order Van Hove points
• Van-Hove tuning of Fermi surface instabilities through compensated metallicity
• Gor'kov-Hedin-Baym Equations for Quantum Many-Body Systems with Spin-Dependent Interactions
• Van-Hove singularities and competing instabilities in an altermagnetic metal
• Design of Chern Insulating Phases in Honeycomb Lattices
• Pairing around a Single Dirac Point: A Unifying View of Kohn-Luttinger Superconductivity in Chern Bands, Quarter Metals, and Topological Surface States
• Magnetic Susceptibility of Dirac Fermions, Bi-Sb Alloys, Interacting Bloch Fermions, Dilute Nonmagnetic Alloys, and Kondo Alloys
• Impurity-Induced Anomalous Thermal Hall Effect in Chiral Superconductors
• Observation of an isolated flat band in the van der Waals crystal NbOCl${}_2$
• Nested Fermi surfaces and correlated electronic phases in hole-doped semiconductor quantum wells
• Possible Chiral Topological Superconductivity in CrO${}_2$ bilayers
• Spin bond order driven by extended repulsive interactions in doped graphene
• Electronic and structural properties of Rh- and Pd-based kagome layered shandites from first principles
• Competing instabilities of the extended Hubbard model on the triangular lattice: Truncated-unity functional renormalization group and application to moiré materials
• Exotic Topological Phenomena in Chiral Superconducting States on Doped Quantum Spin Hall Insulators with Honeycomb Lattices
• Functional renormalization of spinless triangular-lattice fermions: $N$-patch vs. truncated-unity scheme
• Dynamical vortices in electron-phonon superconductors
• Segregation growth and self-organization of ordered S atomic superlattices confined at interface between graphene and substrates
• Chiral topological superconductivity in twisted bilayer and double bilayer graphene
• Median-point approximation and its application for the study of fermionic systems
• Anisotropic scattering rates in strain-tuned Sr${}_2$RuO${}_4$
• Stripe antiferromagnetism and chiral superconductivity in tWSe${}_2$
• Tuning superconducting pairing symmetry via a staggered potential in the doped honeycomb Hubbard model
• Can doping graphite trigger room temperature superconductivity? Evidence for granular high-temperature superconductivity in water-treated graphite powder
• Critical fates induced by the interaction competition in three-dimensional tilted Dirac semimetals
• Anomalous quasiparticle lifetime in geometric quantum critical metals
• Itinerant magnetism in the triangular lattice Hubbard model at half-doping: Application to twisted transition-metal dichalcogenides
• Designing edge currents using mesoscopic patterning in chiral d-wave superconductors