The Challenge of Unconventional Superconductivity

Abstract

During the past few decades, several new classes of superconductors have been discovered. Most of these do not appear to be related to traditional superconductors. As a consequence, it is felt by many that for these materials, superconductivity arises from a different source than the electron-ion interactions that are at the heart of conventional superconductivity. Developing a rigorous theory for any of these classes of materials has proven to be a difficult challenge, and will continue to be one of the major problems in physics in the decades to come.

14 pages, 4 figures

References in corpus (8)

• Observation of Fermi-surface-dependent nodeless superconducting gaps in Ba0.6K0.4Fe2As2
• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Heavy Fermions and Quantum Phase Transitions
• Spin-Liquid State in the S = 1/2 Hyperkagome Antiferromagnet Na4Ir3O8
• Magnetic order in the pseudogap phase of high-$T_C$ superconductors
• Mott Transition from a Spin Liquid to a Fermi Liquid in the Spin-Frustrated Organic Conductor kappa-(ET)2Cu2(CN)3
• Unconventional critical behaviour in a quasi-two-dimensional organic conductor
• Strong electronic correlations in superconducting organic charge transfer salts

Cited by in corpus (211)

• Antiferromagnetic spintronics
• A Common Thread: the pairing interaction for the unconventional superconductors
• Resonant x-ray scattering studies of charge order in cuprates
• Chiral P-Wave Order in Sr_2RuO_4
• Light-Induced Charge Density Wave in LaTe${}_3$
• Unconventional Superconductivity
• Observation of broken time-reversal symmetry in the heavy fermion superconductor UPt${}_3$
• Superconductivity in the vicinity of antiferromagnetic order in CrAs
• Imaging Cooper Pairing of Heavy Fermions in CeCoIn5
• Pressure induced superconductivity on the border of magnetic order in MnP
• Concepts relating magnetic interactions, intertwined electronic orders and strongly correlated superconductivity
• Ultrafast transient generation of spin-densitywave order in the normal state of BaFe2As2 driven by coherent lattice vibrations
• Antiferromagnetic Heisenberg Spin Chain of a Few Cold Atoms in a One-Dimensional Trap
• Spin-orbit torques in locally and globally non-centrosymmetric crystals: Antiferromagnets and ferromagnets
• Unconventional Superconductivity at Mesoscopic Point-contacts on the 3-Dimensional Dirac Semi-metal Cd${}_3$As${}_2$
• Nematic susceptibility of hole- and electron-doped BaFe2As2 iron-based superconductors from shear modulus measurements
• Observation of pair condensation in the quasi-2D BEC-BCS crossover
• Superconductivity-induced reentrance of orthorhombic distortion in Ba1-xKxFe2As2
• Introduction to Holographic Superconductor Models
• Ba1-xNaxTi2Sb2O (0.0 <= x <= 0.33): A Layered Titanium-based Pnictide Oxide Superconductor
• Superconductivity emerging from density-wave-like order in a correlated kagome metal
• Odd-parity superconductors with two-component order parameters: nematic and chiral, full gap and Majorana node
• Highly polarized Fermi gases in two dimensions
• Refined symmetry indicators for topological superconductors in all space groups
• Observation of many-body long-range tunneling after a quantum quench
• Nonstandard superconductivity or no superconductivity in hydrides under high pressure
• Spin-Imbalanced Quasi-Two-Dimensional Fermi Gases
• Insights into the High Temperature Superconducting Cuprates from Resonant Inelastic X-ray Scattering
• Multiple quantum phase transitions and superconductivity in Ce-based heavy fermions
• Discrete superconducting phases in FeSe-derived superconductors
• The origin of the Meissner effect in new and old superconductors
• Electrodynamics of the Superconducting State in Ultra-Thin Films at THz Frequencies
• $f$-electron and magnetic ordering effects in nickelates LaNiO${}_2$ and NdNiO${}_2$: remarkable role of the cuprate-like $3d_{x^2-y^2}$ band
• EuFe2(As1-xPx)2: reentrant spin glass and superconductivity
• Drastic suppression of superconducting $T_c$ by anisotropic strain near a nematic quantum critical point
• A comprehensive scenario of the single crystal growth and doping dependence of resistivity and anisotropic upper critical fields in (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ ($0.22\le x\le 1$)
• Quasiparticle lifetime of the repulsive Fermi polaron
• Stability and breakdown of Fermi polarons in a strongly interacting Fermi-Bose mixture
• Nickelate superconductors: an ongoing dialog between theory and experiments
• Ca${}_3$Ir${}_4$Sn${}_{13}$: A weakly correlated nodeless superconductor
• Switching of magnetic domains reveals evidence for spatially inhomogeneous superconductivity
• Direct Evidence for a Magnetic f-electron Mediated Cooper Pairing Mechanism of Heavy Fermion Superconductivity in CeCoIn5
• Structural and Magnetic Phase Diagram of CrAs and its Relationship with Pressure-induced Superconductivity
• Observing the origin of superconductivity in quantum critical metals
• Holographic Competition of Phases and Superconductivity
• Crossover of Charge Fluctuations across the Strange Metal Phase Diagram
• Anisotropic but nodeless superconducting gap in the presence of spin density wave in iron-pnictide superconductor NaFe1-xCoxAs
• Kinetic-energy driven superconductivity in cuprate superconductors
• Multiple nodeless superconducting gaps in noncentrosymmetric superconductor PbTaSe2 with topological bulk nodal lines
• Emergence of an incipient ordering mode in FeSe
• Hole superconductivity in $H_{2}S$ and other sulfides under high pressure
• Anomalous Metallic Phase in Tunable Destructive Superconductors
• Diffusion Monte Carlo study of strongly interacting two-dimensional Fermi gases
• New mechanism and exact theory of superconductivity from strong repulsive interaction
• Retardation effects and the Coulomb pseudopotential in the theory of superconductivity
• Ab initio theory of plasmonic superconductivity within the Eliashberg and density-functional formalisms
• Nodeless superconductivity in Ca3Ir4Sn13: evidence from quasiparticle heat transport
• s${}_{\pm }$ pairing near a Lifshitz transition
• Evolution of the superconducting energy gap structure concomitant with Fermi surface reconstruction in the heavy-fermion superconductor CeCoIn5
• Strong magnetic fluctuations in superconducting state of CeCoIn${}_5$
• Temperature and Angular Dependence of the Upper Critical Field in K${}_2$Cr${}_3$As${}_3$
• Enhanced triplet superconductivity in next generation ultraclean UTe2
• Anisotropic in-plane optical conductivity in detwinned Ba(Fe1-xCox)2As2
• Coexistence and competition of ferromagnetism and p-wave superconductivity in holographic model
• Competing nodal d-wave superconductivity and antiferromagnetism
• Strong in-plane magnetic field induced reemergent superconductivity in the van der Waals heterointerface of NbSe2 and CrCl3
• First principles study of structural, magnetic and electronic properties of CrAs
• Strain-induced tuning of the electronic Coulomb interaction in 3d transition metal oxide perovskites
• Susceptibility anisotropy in an iron arsenide superconductor revealed by x-ray diffraction in pulsed magnetic fields
• A Holographic Model for Paramagnetism/antiferromagnetism Phase Transition
• Quantum Criticality and DBI Magneto-resistance
• Signatures of quantum criticality in hole-doped and chemically pressurized EuFe_2As_2 single crystals
• Anomalous Damping of a Micro-electro-mechanical Oscillator in Superfluid ${}^3$He-B
• Charge and spin supercurrents in triplet superconductor--ferromagnet--singlet superconductor Josephson junctions
• Unconventional fully-gapped superconductivity in the heavy-fermion metal CeCu${}_2$Si${}_2$
• Fermi Gases in the Two-Dimensional to Quasi-Two-Dimensional Crossover
• Nodal superconductivity and superconducting dome in new layered superconductor Ta4Pd3Te16
• Interplane resistivity of underdoped single crystals (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$, $0\le x<0.34$
• Stepwise Bose-Einstein condensation in a spinor gas
• Local and collective magnetism of EuFe${}_2$As${}_2$
• Theory of Scanning Tunneling Spectroscopy: from Kondo Impurities to Heavy Fermion Materials
• Ultracold few fermionic atoms in needle-shaped double wells: spin chains and resonating spin clusters from microscopic Hamiltonians emulated via antiferromagnetic Heisenberg and t-J models
• Neutron Scattering Evidence for a Periodically-Modulated Superconducting Phase in the Underdoped Cuprate La${}_{1.905}$Ba${}_{0.095}$CuO${}_4$
• Flux trapping in superconducting hydrides under high pressure
• Multiple band-crossings and Fermi surface topology: role of double nonsymmorphic symmetries in MnP-type crystal structures
• Understanding Magnetic Properties of Actinide-Based Compounds from Machine Learning
• Broken Time Reversal Symmetry in Superconducting Pr1-xCexPt4Ge12
• Weak Coupling BCS-like Superconductivity in the Pnictide Oxide Ba${}_{1-x}$Na${}_x$Ti${}_2$Sb${}_2$O (x=0 and 0.15)
• Spin-orbit coupling effects on the electronic properties of the pressure-induced superconductor CrAs
• Nature of the spin resonance mode in CeCoIn${}_5$
• Growth of bulk single-crystal MnP helimagnet and its structural and NMR characterization
• Doping evolution of charge and spin excitations in two-leg Hubbard ladders: comparing DMRG and RPA+FLEX results
• From Ising resonant fluctuations to static uniaxial order in antiferromagnetic and weakly superconducting CeCo(In${}_{1-x}$Hg${}_x$)${}_5$ ($x$=0.01)
• Evidence for unconventional superconductivity in a spinel oxide
• Ground-state phases of a mixture of spin-1 and spin-2 Bose-Einstein condensates
• Ab initio quantum many-body description of superconducting trends in the cuprates
• Emergent superconducting fluctuations in a compressed kagome superconductor
• Tuning from Frustrated Magnetism to Superconductivity in Quasi-One-Dimensional KCr${}_3$As${}_3$ Through Hydrogen Doping
• Broken time-reversal symmetry in superconducting Pr${}_{1-x}$La${}_x$Pt${}_4$Ge${}_{12}$
• Doping evolution of the superconducting gap structure in the underdoped iron arsenide Ba1-xKxFe2As2 revealed by thermal conductivity
• Frustrated structural instability in superconducting quasi-one-dimensional K${}_2$Cr${}_3$As${}_3$
• Two-Particle Self-Consistent method for the multi-orbital Hubbard model
• Superconductivity in HEA-type compounds
• BCS-BEC crossover in a quasi-two-dimensional Fermi gas
• Notes on Constraints for the Observation of Polar Kerr Effect in Complex Materials
• Spin Resonance and Magnetic Order in an Unconventional Superconductor
• Spinor dynamics in a mixture of spin-1 and spin-2 Bose-Einstein condensates
• Doping dependence of the anisotropic quasiparticle interference in NaFe1-xCoxAs iron-based superconductors
• Flipping of antiferromagnetic to superconducting states in pressurized quasi-one-dimensional manganese-based compounds
• Dipolar Gases in Coupled One-Dimensional Lattices
• Spin-triplet superconductivity in a weak-coupling Hubbard model for the quasi-one-dimensional compound Li${}_{0.9}$Mo${}_6$O${}_{17}$
• Ultrafast spectroscopy of quasiparticle dynamics in cuprate superconductors
• Pair Wavefunction Symmetry in UTe2 from Zero-Energy Surface State Visualization
• Chemical Principles of Intrinsic Topological Superconductors
• Visualizing Heavy Fermion Confinement and Pauli-Limited Superconductivity in Layered CeCoIn5
• A New Spin on Material Properties: Local Magnetic Structure in Functional and Quantum Materials
• Effect of heavy-ion irradiation on London penetration depth in over-doped Ba(Fe,Co)2As2
• First-principles studies of spin-orbital physics in pyrochlore oxides
• Direct observation of heavy quasiparticles in the Kondo lattice CeIn3
• Light-induced switching between singlet and triplet superconducting states
• Dynamic Hubbard model: kinetic energy driven charge expulsion, charge inhomogeneity, hole superconductivity, and Meissner effect
• Incommensurate two-dimensional checkerboard charge density wave in the low dimensional superconductor Ta4Pd3Te16
• Possible unconventional pairing in $(\text{Ca,Sr}{)}_3(\text{Ir,Rh}{)}_4{\text{Sn}}_{13}$ superconductors revealed by controlling disorder
• Superconductivity of repulsive spinless fermions with sublattice potentials
• Improved effective vertices in the multi-orbital Two-Particle Self-Consistent method from Dynamical Mean-Field Theory
• Floquet Spinor Bose Gases
• High pressure study of the normal and superconducting states of the layered pnictide oxide Ba${}_{1-x}$Na${}_x$Ti${}_2$Sb${}_2$O with x = 0, 0.10, and 0.15
• Search for Pressure Induced Quantum Criticality in YbFe2Zn20
• Comment on 'Diamagnetism and Cooper pairing above Tc in cuprates'
• Electron pairing: from metastable electron pair to bipolaron
• The conductivity and the magnetization around Tc in optimally-doped YBa${}_2$Cu${}_3$O${}_{7-\delta }$ revisited: quantitative analysis in terms of fluctuating superconducting pairs
• Intra-chain collinear magnetism and inter-chain magnetic phases in Cr3As3-K-based materials
• Absence of Local Fluctuating Dimers in Superconducting Ir${}_{1-x}$(Pt,Rh)${}_x$Te${}_2$
• Magnetically-textured superconductivity in elemental Rhenium
• Spin and charge density waves in the quasi-one-dimensional KMn6Bi5
• Nematic magnetoelastic effect contrasted between Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ and FeSe
• Emergent superconductivity upon disordering a charge density wave ground state
• Deep Learning Based Superconductivity: Prediction and Experimental Tests
• Unconventional full-gap superconductivity in Kondo lattice with semi-metallic conduction bands
• Doping dependence of the upper critical field, superconducting current density and thermally activated flux flow activation energy in polycrystalline CeFeAsO1-xFx superconductors
• Electronic character of charge order in square planar low valence nickelates
• Variation of carrier density in semimetals via short-range correlation: A case study with nickelate NdNiO${}_2$
• Competition of superconductivity with the structural transition in Mo3Sb7
• Magnetic neutron scattering studies on the Fe-based superconductor system Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Stripe Symmetry of Short-range Charge Density Waves in Cuprate Superconductors
• Anisotropic Superconductivity Emerging from the Orbital Degrees of Freedom in a ${\Gamma }_3$ Non-Kramers Doublet System
• Anisotropic effect of a magnetic field on the neutron spin resonance in FeSe
• Exploration of the Hg-based cuprate superconductors by Raman spectroscopy under hydrostatic pressure
• Direct Visualization of a Static Incommensurate Antiferromagnetic Order by Suppressing the Superconducting Phase Coherence in Fe-doped Bi2Sr2CaCu2O8+delta
• Beyond-Hubbard pairing in a cuprate ladder
• Grand Challenges in Quantum Fluids and Solids
• Superconductivity in a Magnetic Rashba Semimetal EuAuBi
• Unconventional High Temperature Superconductivity in Cubic Zinc-blende Transition Metal Compounds
• Charge doping to flat AgF2 monolayers in a chemical capacitor setup
• Universal Heat Conduction in Ce1-xYbxCoIn5: Evidence for Robust Nodal d-wave Superconducting Gap
• Simultaneous collapse of antiferroquadrupolar order and superconductivity in PrIr${}_2$Zn${}_{20}$ by nonhydrostatic pressure
• Fate of the Hebel-Slichter peak in superconductors with strong antiferromagnetic fluctuations
• Multi-Atom Quasiparticle Scattering Interference for Superconductor Energy-Gap Symmetry Determination
• Muon Spin Relaxation and fluctuating magnetism in the pseudogap phase of YBa${}_2$Cu${}_3$O${}_y$
• Quasiparticle interference of heavy fermions in resonant X-ray scattering
• Emergent Magnetism at the 3$d$-5$d$ Interface: SrMnO${}_3/$SrIrO${}_3$
• Unconventional non-Fermi liquid state caused by nematic criticality in cuprates
• Superconductivity in the two-dimensional Hubbard model with cellular dynamical mean-field theory: a quantum impurity model analysis
• Lattice-Driven Chiral Charge Density Wave State in 1T-TaS${}_2$
• Direct observation of the Higgs particle in a superconductor by non-equilibrium Raman scattering
• A generalized effective spin-chain formalism for strongly interacting spinor gases in optical lattice
• Fully two-dimensional incommensurate charge modulation on the Pd-terminated polar surface of PdCoO2
• Nematic and time-reversal breaking superconductivities coexisting with quadrupole order in a ${\Gamma }_3$ system
• Possible routes to superconductivity in the surface layers of V-doped Mg${}_{1-\delta }$Ti${}_2$O${}_4$ through multiple charge transfers and suppression of Jahn-Teller activity
• Evolution of Magnetic Double Helix and Quantum Criticality near a Dome of Superconductivity in CrAs
• Mixed temperature-dependent order parameters in the extended Hubbard model
• Multiple Broken Symmetries in Striped La${}_{2-x}$Ba${}_x$CuO${}_4$ detected by the Field Symmetric Nernst Effect
• Magnonic Superconductivity
• Spectral functions of the honeycomb lattice with both the Hubbard and long-range Coulomb Interactions
• Multiband nodeless superconductivity near the charge-density-wave quantum critical point in ZrTe3-xSex
• Simple predictors of $T_c$ in superconducting cuprates and the role of interactions between effective Wannier orbitals in the $d-p$ 3-band model
• $s$-wave superconductivity in the noncentrosymmetric W${}_3$Al${}_2$C superconductor: An NMR study
• Instabilities of quantum critical metals in the limit $N_f\to 0$
• The Future of the Correlated Electron Problem
• Connection between in-plane upper critical field $H_{c2}$ and gap symmetry in layered $d$-wave superconductors revisited
• Remarks on the first hundred years of superconductivity
• Role of Hund's splitting in electronic phase competition in ${\mathrm{Pb}}_{1-x}{\mathrm{Sn}}_x\mathrm{Te}$
• Renormalization-group exponents for superconducting phases in two-leg ladders
• Quantum criticality and superconducting pairing in Ce(1-x)Yb(x)CoIn5 alloys
• Lack of superconductivity in the phase diagram of single-crystalline Eu(Fe1-xCox)2As2 grown by transition metal arsenide flux
• Emergent interlayer nodal superfluidity of a dipolar fermi gas in bilayer optical lattices
• Crucial role of Internal Collective Modes in Underdoped Cuprates
• Valence band electronic structure of Nb2Pd1.2Se5 and Nb2Pd0.95S5 superconductors
• Valence band electronic structure of Pd based ternary chalcogenide superconductors
• Competing effects of Hund's splitting and symmetry-breaking perturbations on electronic order in Pb${}_{1-x}$Sn${}_x$Te
• Pressure-induced superconductivity in itinerant antiferromagnet CrB2
• Single Crystal Growth, Transport, and Electronic Band Structure of YCoGa${}_5$
• The mechanism of anisotropic exchange interaction in superconducting iron arsenides
• Hamiltonian of a many-electron system with single-electron and electron-pair states in a two-dimensional periodic potential
• Microscopic Insights into London Penetration Depth: Application to CeCoIn${}_5^{}$
• Phase separation and metastability in a mixture of spin-1 and spin-2 Bose-Einstein condensates
• New results on the anomalous precursor diamagnetism in the underdoped La1.9Sr0.1CuO4 superconductor
• Influence of carrier lifetime on quantum criticality and superconducting Tc of (TMTSF)_2ClO_4
• Formation of CuO${}_2$ sublattices by suppression of interlattice correlations in tetragonal CuO
• "Half-Bogoliubons" as the intermediate states for the phase coherence in underdoped cuprates
• Hot-lines topology and the fate of the spin resonance mode in three-dimensional unconventional superconductors
• Discovery of a bi-critical point between antiferromagnetic and superconducting phases in pressurized single crystal Ca0.73La0.27FeAs2
• Dynamics of superconducting pairs in the two-dimensional Hubbard model
• Mixed-symmetry superconductivity and the energy gap
• Magnetism and Superconductivity in Iron-based Superconductors Decided by Condensed Particle-hole Excitations away from the Fermi Level
• Magnetic Field Dependence of the Spin Fluctuations in CeCu${}_{5.8}$Ag${}_{0.2}$
• Interference Effect of Beam Splitter Current in Iron-Pnictide Superconductors
• Distinct domain switching in Nd0.05Ce0.95CoIn5 at low and high fields
• Bad metal and negative compressibility transitions in a two-band Hubbard model
• Link between spin fluctuations and Cooper pairing in copper oxide superconductors
• Magnetic field tuned superconducting and normal phase magnetism in CeCo${}_{0.5}$Rh${}_{0.5}$In${}_5$