Enhancement of superconductivity near a nematic quantum critical point

Abstract

We consider a low $T_c$ metallic superconductor weakly coupled to the soft fluctuations associated with proximity to a nematic quantum critical point (NQCP). We show that: 1) a BCS-Eliashberg treatment remains valid outside of a parametrically narrow interval about the NQCP; 2) the symmetry of the superconducting state (d-wave, s-wave, p-wave) is typically determined by the non-critical interactions, but $T_c$ is enhanced by the nematic fluctuations in all channels; 3) in 2D, this enhancement grows upon approach to criticality up to the point at which the weak coupling approach breaks-down, but in 3D the enhancement is much weaker.

arXiv comment4 pages, plus supplementary material

References in corpus (44)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Superconductivity in Iron Compounds
• Renormalization Group Approach to Interacting Fermions
• Interface induced high temperature superconductivity in single unit-cell FeSe films on SrTiO3
• Nematic order in iron superconductors - who is in the driver's seat?
• Gap symmetry and structure of Fe-based superconductors
• Phase Diagram and High Temperature Superconductivity at 65 K in Tuning Carrier Concentration of Single-Layer FeSe Films
• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Intra-unit-cell electronic nematicity of the high-Tc copper-oxide pseudogap states
• Ubiquitous Interplay between Charge Ordering and High-Temperature Superconductivity in Cuprates
• Charge order driven by Fermi-arc instability in Bi2201
• Divergent nematic susceptibility in an iron arsenide superconductor
• Broken rotational symmetry in the pseudogap phase of a high-Tc superconductor
• Electronic liquid crystal state in the high-temperature superconductor YBCO(6.45)
• From Fermi Arcs to the Nodal Metal: Scaling of the Pseudogap with Doping and Temperature
• Polar Kerr Effect Measurements of YBa2Cu3O6+x: Evidence for Broken Symmetry Near the Pseudogap Temperature
• Normal-State Spin Dynamics and Temperature-Dependent Spin Resonance Energy in an Optimally Doped Iron Arsenide Superconductor
• Periodic Density of States Modulations in Superconducting $\mathrm{B}{\mathrm{i}}_2\mathrm{S}{\mathrm{r}}_2\mathrm{CaC}{\mathrm{u}}_2{\mathrm{O}}_{8+\delta }$
• Striped superconductors: How the cuprates intertwine spin, charge and superconducting orders
• Phase competition in trisected superconducting dome
• Strength of the Spin-Fluctuation-Mediated Pairing Interaction in a High-Temperature Superconductor
• Simultaneous Transitions in Cuprate Momentum-Space Topology and Electronic Symmetry Breaking
• Quenched disorder and vestigial nematicity in the pseudo-gap regime of the cuprates
• Contrasting Spin Dynamics Between Underdoped and Overdoped Ba(Fe[1-x]Co[x])2As2
• Direct measurement of the upper critical field in a cuprate superconductor
• Soft Fermi Surfaces and Breakdown of Fermi Liquid Behavior
• Competing charge, spin, and superconducting orders in underdoped YBa2Cu3Oy
• Momentum-dependent charge correlations in YBa${}_2$Cu${}_3$O${}_{6+\delta }$ superconductors probed by resonant x-ray scattering: Evidence for three competing phases
• Quantum critical behavior in itinerant electron systems -- Eliashberg theory and instability of a ferromagnetic quantum-critical point
• Structural quantum criticality and superconductivity in iron-based superconductor Ba(Fe1-xCox)2As2
• Sign-problem-free quantum Monte Carlo of the onset of antiferromagnetism in metals
• Fermi surface fluctuations and single electron excitations near Pomeranchuk instability in two dimensions
• Quasiparticle mass enhancement close to the quantum critical point in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• High Temperature Superconductivity: Ineluctable Complexity
• Direct spectroscopic evidence for phase competition between the pseudogap and superconductivity in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Non-Fermi liquid fixed point in a Wilsonian theory of quantum critical metals
• Energy gaps in the failed high-Tc superconductor La1.875Ba0.125CuO4
• Non-Fermi liquid behavior of large N_B quantum critical metals
• Superconductivity from orbital nematic fluctuations
• Evidence for forward scattering and coupling to acoustic phonon modes in high-T${}_c$ cuprate superconductors
• Comparison of charge modulations in La${}_{1.875}$Ba${}_{0.125}$CuO${}_4$ and YBa${}_2$Cu${}_3$O${}_{6.6}$
• Pairing Instability in a Nematic Fermi Liquid
• Low energy collective modes, Ginzburg-Landau theory, and pseudogap behavior in superconductors with long-range pairing interactions
• Exploration of iron-chalcogenide superconductors

Cited by in corpus (218)

• Theory of Intertwined Orders in High Temperature Superconductors
• Ubiquitous signatures of nematic quantum criticality in optimally doped Fe-based superconductors
• Holographic quantum matter
• Phases of a phenomenological model of twisted bilayer graphene
• Nematic quantum critical point without magnetism in FeSe1-xSx superconductors
• Superconductivity and non-Fermi liquid behavior near a nematic quantum critical point
• Intertwined vestigial order in quantum materials: nematicity and beyond
• Weak-Pairing Higher Order Topological Superconductors
• Recent Developments in Non-Fermi Liquid Theory
• Monolayer FeSe on SrTiO${}_3$
• Magnetism, superconductivity, and spontaneous orbital order in iron-based superconductors: who comes first and why?
• Odd-parity superconductivity in the vicinity of inversion symmetry breaking in spin-orbit-coupled systems
• Ising nematic quantum critical point in a metal: a Monte Carlo study
• Maximizing Tc by tuning nematicity and magnetism in FeSe1-xSx superconductors
• Variational Study of Fermionic and Bosonic Systems with Non-Gaussian States: Theory and Applications
• Cooper pairing of incoherent electrons: an electron-phonon version of the Sachdev-Ye-Kitaev model
• Enhanced superconductivity due to forward scattering in FeSe thin films on SrTiO3 substrates
• Charge Nematicity and Electronic Raman Scattering in Iron-based Superconductors
• Electronic nematic susceptibility of iron-based superconductors
• What makes the Tc of monolayer FeSe on SrTiO3 so high: a sign-problem-free quantum Monte Carlo study
• Distinctive momentum dependence of the band reconstruction in the nematic state of FeSe thin film
• Monte Carlo Studies of Quantum Critical Metals
• Solvable Strong-coupling Quantum Dot Model with a Non-Fermi-liquid Pairing Transition
• Self-Learning Monte Carlo Method in Fermion Systems
• Critical Quadrupole Fluctuations and Collective Modes in Iron Pnictide Superconductors
• Superconductivity near a quantum-critical point: The special role of the first Matsubara frequency
• Nematic fluctuations and the magneto-structural phase transition in $\mathrm{Ba}(\mathrm{F}{\mathrm{e}}_{1-\mathrm{x}}\mathrm{C}{\mathrm{o}}_{\mathrm{x}}{)}_2\mathrm{A}{\mathrm{s}}_2$
• Cuprate superconductors as viewed through a striped lens
• Sixfold enhancement of superconductivity in a tunable electronic nematic system
• Non-Fermi-liquid at (2+1)d ferromagnetic quantum critical point
• Exact critical exponents for the antiferromagnetic quantum critical metal in two dimensions
• Topological superconducting phases from inversion symmetry breaking order in spin-orbit-coupled systems
• Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors
• Superconductivity in FeSe thin films driven by the interplay between nematic fluctuations and spin-orbit coupling
• Interplay between superconductivity and non-Fermi liquid at a quantum-critical point in a metal. I: The $\gamma$-model and its phase diagram at $T=0$. The case $0<\gamma <1$
• Topological and nematic superconductivity mediated by ferro-SU(4) fluctuations in twisted bilayer graphene
• A Tale of Two Metals: contrasting criticalities in the pnictides and hole-doped cuprates
• Electronic nematic states tuned by isoelectronic substitution in bulk FeSe1-xSx
• Correlation between Superconductivity and Magnetic Fluctuations in Fe(Se1-xSx) Revealed by 77Se NMR
• Spin-triplet superconductivity at the onset of isospin order in biased bilayer graphene
• Topological phase transitions in multi-component superconductors
• Dome of magnetic order inside the nematic phase of sulfur-substituted FeSe under pressure
• Unified phase diagram for iron-based superconductors
• Symmetric and antisymmetric strain as continuous tuning parameters for electronic nematic order
• Quantum Phase Transition in the Yukawa-SYK Model
• Pure nematic quantum critical point accompanied by a superconducting dome
• Remarkable Stability of Charge Density Wave Order in La${}_{1.875}$Ba${}_{0.125}$CuO${}_4$
• Normal state properties of quantum critical metals at finite temperature
• NMR evidence for inhomogeneous nematic fluctuations in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Nematic quantum criticality in an Fe-based superconductor revealed by strain-tuning
• Anisotropic superconductivity mediated by ferroelectric fluctuations in cubic systems with spin-orbit coupling
• Enhancement of superconductivity at the onset of charge-density-wave order in a metal
• The nature of effective interaction in cuprate superconductors: a sign-problem-free quantum Monte-Carlo study
• Nematic Quantum Critical Fluctuations in BaFe${}_{2-x}$Ni${}_x$As${}_2$
• Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3Oy
• Dichotomy between in-plane magnetic susceptibility and resistivity anisotropies in extremely strained $BaF{e}_{2}A{s}_2$
• Superconductivity near a nematic quantum critical point -- the interplay between hot and lukewarm regions
• Superconductivity and Nematic Fluctuations in a model of FeSe monolayers: A Determinant Quantum Monte Carlo Study
• Spin-excitation anisotropy in the nematic state of detwinned FeSe
• Pairing instability near a lattice-influenced nematic quantum critical point
• Dynamical Generation of Topological Masses in Dirac Fermions
• The relationship between transport anisotropy and nematicity in FeSe
• Elastocaloric signature of nematic fluctuations
• The special role of the first Matsubara frequency for superconductivity near a quantum-critical point -- the non-linear gap equation below $T_c$ and spectral properties in real frequencies
• Transverse fields to tune an Ising-nematic quantum critical transition
• Hydrostatic and uniaxial pressure tuning of iron-based superconductors: Insights into superconductivity, magnetism, nematicity and collapsed tetragonal transitions
• Pairing from dynamically screened Coulomb repulsion in bismuth
• Identification of non-Fermi liquid fermionic self-energy from quantum Monte Carlo data
• Incommensurate smectic phase in close proximity to the high-Tc superconductor FeSe/SrTiO3
• The transport-structural correspondence across the nematic phase transition probed by elasto-x-ray diffraction
• An Electronic Nematic Liquid in BaNi${}_2$As${}_2$
• The interplay between superconductivity and non-Fermi liquid at a quantum-critical point in a metal
• Electron Mass Enhancement near a Nematic Quantum Critical Point in NaFe${}_{1-x}$Co${}_x$As
• Superconductivity near a ferroelectric quantum critical point in ultralow-density Dirac materials
• Visualizing nematic transition and nanoscale suppression of superconductivity in Fe(Te,Se)
• Effective SU(2) theory for the pseudogap state
• Yukawa-SYK model and Self-tuned Quantum Criticality
• Superconductivity-induced nematicity
• Local orthorhombic lattice distortions in the paramagnetic tetragonal phase of superconducting NaFe${}_{1-x}$Ni${}_x$As
• Pairing in quantum-critical systems: $T_c$, $\Delta$, and their ratio
• Imaging anomalous nematic order and strain in optimally doped BaFe${}_2$(As,P)${}_2$
• Quantitative characterization of short-range orthorhombic fluctuations in FeSe through pair distribution function analysis
• Field-tuned ferroquadrupolar quantum phase transition in the insulator TmVO${}_4$
• Elastoresistivity in the incommensurate charge density wave phase of BaNi${}_{\text{2}}$(As${}_{\text{1-x}}$P${}_{\text{x}}$)${}_{\text{2}}$
• Collapse of critical nematic fluctuations in FeSe under pressure
• Electron-Electron Interactions and the Paired-to-Nematic Quantum Phase Transition in the Second Landau Level
• Separate tuning of nematicity and spin fluctuations to unravel the origin of superconductivity in FeSe
• Effect of nematic order on the low-energy spin fluctuations in detwinned BaFe${}_{1.935}$Ni${}_{0.065}$As${}_2$
• Hedgehog Spin-vortex Crystal Antiferromagnetic Quantum Criticality in CaK(Fe1-xNix)4As4 Revealed by NMR
• Heterostructural one-unit-cell FeSe/SrTiO3: from high-temperature superconductivity to topological states
• A candidate Theory for the "Strange Metal" phase at Finite Energy Window
• Superconductivity and electronic fluctuations in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ studied by Raman scattering
• Superconductivity of incoherent electrons in Yukawa-SYK model
• Superconductivity vs quantum criticality: effects of thermal fluctuations
• Evolution of the nematic susceptibility in LaFe${}_{1-x}$Co${}_x$AsO
• Iron-based superconductors: teenage, complex, challenging
• Non-Fermi liquid at the FFLO quantum critical point
• Ultrafast nematic-orbital excitation in FeSe
• Double stage nematic bond-ordering above double stripe magnetism: application to BaTi${}_2$Sb${}_2$O
• Superconductivity Mediated by Nematic Fluctuations in Tetragonal $\text{Fe}{\text{Se}}_{1-x}{\text{S}}_x$
• Enhanced superconducting pairing strength near a nonmagnetic nematic quantum critical point
• Singular magnetic anisotropy in the nematic phase of FeSe
• Superconductivity above a quantum critical point in a metal -- gap closing vs gap filling, Fermi arcs, and pseudogap behavior
• Emerging symmetric strain response and weakening nematic fluctuations in strongly hole-doped iron-based superconductors
• Short-range nematic fluctuations in Sr1-xNaxFe2As2 superconductors
• Odd-parity superconductivity near inversion breaking quantum critical point in one dimension
• High Tc superconductivity in CaKFe${}_4$As${}_4$ in absence of nematic fluctuations
• Second order Zeeman interaction and ferroquadrupolar order in TmVO${}_4$
• Lattice-Shifted Nematic Quantum Critical Point in FeSe${}_{1-x}$S${}_x$
• Spin-triplet superconductivity from inter-valley Goldstone modes in magic-angle graphene
• Bounds on Nanoscale Nematicity in Single-Layer FeSe/SrTiO${}_3$
• Widespread orthorhombic fluctuations in the (Sr,Na)Fe${}_2$As${}_2$ family of superconductors
• Static Charge Density Wave Order in the Superconducting State of La2-xBaxCuO4
• Metal-Insulator Transition with Charge Fractionalization
• NMR study of nematic spin fluctuations in a detwinned single crystal of underdoped Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Local nematic susceptibility in stressed BaFe${}_2$As${}_2$ from NMR electric field gradient measurements
• Magnetic excitations and amplitude fluctuations in insulating cuprates
• Implicit renormalization approach to the problem of Cooper instability
• Specific Heat of a Quantum Critical Metal
• Stable non-Fermi liquid phase of itinerant spin-orbit coupled ferromagnets
• Coexistence of Nematic Order and Superconductivity in the Hubbard Model
• Raman Study of Cooper Pairing Instabilities in (Li${}_{1-x}$Fe${}_x$)OHFeSe
• Spin fluctuation anisotropy as a probe of orbital-selective hole-electron quasiparticle excitations in detwinned Ba(Fe1-xCox)2As2
• Anisotropic nematic fluctuations above the ferroquadrupolar transition in TmVO${}_4$
• Quantum criticality preempted by nematicity
• Valley-polarized nematic order in twisted moiré systems: In-plane orbital magnetism and non-Fermi liquid to Fermi liquid crossover
• Orbital Orders and non-Fermi Liquid in Moiré systems
• Synergetic ferroelectricity and superconductivity in zero-density Dirac semimetals near quantum criticality
• Finite temperature scaling close to Ising-nematic quantum critical points in two-dimensional metals
• Dynamic spin-lattice coupling and nematic fluctuations in NaFeAs
• Superconductivity out of a non-Fermi liquid. Free energy analysis
• The pairing glue in cuprate superconductors from the self-energy revealed via machine learning
• Anisotropy of the Seebeck and Nernst coefficients in parent compounds of the iron-based superconductors
• Superconductivity due to fluctuating loop currents
• Low frequency Raman response near Ising-nematic quantum critical point: a memory matrix approach
• Large nematic susceptibility in the double-Q $C_4$ magnetic phase of Ba${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$
• Nematic fluctuations balancing the zoo of phases in half-filled quantum Hall systems
• Intra-unit-cell singlet pairing mediated by altermagnetic fluctuations
• Tests of nematic-mediated superconductivity applied to Ba${}_{1-x}$Sr${}_x$Ni${}_2$As${}_2$
• Electron pairing induced by repulsive interactions in tunable one-dimensional platforms
• Competition of Pairing and Nematicity in the Two-Dimensional Electron Gas
• Incommensurate $2k_F$ density wave quantum criticality in two dimensional metals
• From high-$T_c$ to low-$T_c$: Multi-orbital effects in transition metal oxides
• Superconductivity and fluctuation in Ba${}_{1-p}$K${}_p$Fe${}_2$As${}_2$ and Ba(Fe${}_{1-n}$Co${}_n$)${}_2$As${}_2$
• Lattice models for Non-Fermi Liquids with Tunable Transport Scalings
• Degeneracy between even- and odd-parity superconductivity in the quasi-1D Hubbard model and implications for Sr2RuO4
• Interrelationships between nematicity, antiferromagnetic spin fluctuations and superconductivity: Role of hotspots in FeSe${}_{1-x}$S${}_x$ revealed by high pressure ${}^{77}$Se NMR study
• A Sport and a Pastime: Model Design and Computation in Quantum Many-Body Systems
• Interplay of superconductivity and localization near a 2D ferromagnetic quantum critical point
• Role of Local Ru Hexamers in Superconductivity of Ruthenium Phosphide
• Role of Fermi surface for the pressure-tuned nematic transition in the BaFe${}_2$As${}_2$ family
• Charge order and Mott insulating ground states in small-angle twisted bilayer graphene
• Potential Lifshitz transition at optimal substitution in nematic pnictide Ba${}_{1-x}$Sr${}_x$Ni${}_2$As${}_2$
• Colossal transverse magnetoresistance due to nematic superconducting phase fluctuations in a copper oxide
• Spectroscopic evidence of nematic fluctuations in LiFeAs
• Nonlinear uniaxial pressure dependence of $T_c$ in iron-based superconductors
• Tendencies of enhanced electronic nematicity in the Hubbard model and a comparison with Raman scattering on high-temperature superconductors
• Comparison of temperature and doping dependence of nematic susceptibility near a putative nematic quantum critical point
• Space of non-Fermi liquids
• Spin Liquid and Superconductivity emerging from Steady States and Measurements
• Studying angle-dependent magnetoresistance oscillations of cuprate superconductors in a model with antiferromagnetic reconstruction and magnetic breakdown
• Impact of the first order antiferromagnetic phase transition on the paramagnetic spin excitations and nematic phase of SrFe${}_2$As${}_2$
• Odd frequency pairing in a quantum critical metal
• Evolution of lattice, spin, and charge properties across the phase diagram of FeSe${}_{1-x}$S${}_x$
• Identifying the dominant pairing interaction in high-$T_c$ FeSe superconductors through Leggett modes
• Universal collective modes in 2 dimensional chiral superfluids
• Growth of nematic susceptibility in the field-induced normal state of an iron-based superconductor revealed by elastoresistivity measurements in a 65 T pulsed magnet
• Domes of $T_c$ in single-band and multiband superconductors with finite-range attractive interactions
• Superconducting gap and nematic resonance at the quantum critical point observed by Raman scattering in $\mathrm{BaF}{\mathrm{e}}_2({\mathrm{As}}_{1-x}{\mathrm{P}}_x{)}_2$
• Variation of shear moduli across superconducting phase transitions
• Quantum critical fluctuations in an Fe-based superconductor
• Theories for charge-driven nematicity in kagome metals
• Preempting Fermion Sign Problem: Unveiling Quantum Criticality through Nonequilibrium Dynamics in Imaginary Time
• Enhancement of superconductivity by electronic nematicity in cuprate superconductors
• Non-Fermi liquid fixed points and anomalous Landau damping in a quantum critical metal
• Thermoelectric signature of the nematic phase in iron-based superconductor
• Nematic fluctuations in the non-superconducting iron pnictide BaFe${}_{1.9-x}$Ni${}_{0.1}$Cr${}_x$As${}_2$
• Orbital order from the on-site orbital attraction
• Spin-echo and quantum versus classical critical fluctuations in TmVO${}_4$
• Breakdown of Landau Fermi liquid theory: restrictions on the degrees of freedom of quantum electrons
• Instabilities of quantum critical metals in the limit $N_f\to 0$
• c-axis pressure induced antiferromagnetic order in optimally P-doped BaFe2(As0.70P0.30)2 superconductor
• No nematicity at the onset temperature of the pseudogap phase in the cuprate superconductor YBCO
• Elastic Quantum Criticality in Nematics and Altermagnets via the Elasto-Caloric Effect
• Strong electron-phonon coupling in Ba${}_{1-x}$Sr${}_x$Ni${}_2$As${}_2$
• Interplay between Multipolar Order and Multipole-Induced Superconductivity in PrTi${}_2$Al${}_{20}$
• Elastoresistivity of heavily hole doped 122 iron pnictides superconductors
• Atomic scale imaging of sign-changing order parameter in superconducting FeSe with Tunneling Andreev Reflection
• Nematic order driven by superconducting correlations
• One-dimensional scattering of two-dimensional fermions near quantum criticality
• Absence of emergent supersymmetry at superconducting quantum critical points in Dirac and Weyl semimetals
• Mapping out the spin fluctuations in Co-doped LaFeAsO single crystals by NMR
• Field Theoretic Aspects of Condensed Matter Physics: An Overview
• Absence of precursor incommensurate charge order in electronic nematic Ba0.35Sr0.65Ni2As2
• Fate of superconductivity in disordered Dirac and semi-Dirac semimetals
• Interplay between nematic fluctuation and superconductivity in the two-orbital Hubbard model: A quantum Monte Carlo study
• Microscopic origin of the nemato-elastic coupling and dynamics of hybridized collective nematic-phonon excitations
• Quasiparticle scattering in a superconductor near a nematic critical point: resonance mode and multiple attractive channels
• Nematic Enhancement of Superconductivity in Multilayer Graphene via Quantum Geometry
• Superconductivity near a nematoelastic quantum critical point
• Optical Properties of Superconducting K${}_{0.8}$Fe${}_{1.7}$(Se${}_{0.73}$S${}_{0.27}$)${}_2$ Single Crystals
• Nematic fluctuations mediated superconductivity revealed by anisotropic strain in Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Quantitative relationship between structural orthorhombicity, shear modulus and heat capacity anomaly of the nematic transition in iron-based superconductors
• Compatible Instability: Gauge Constraints of Elasticity Inherited by Electronic Nematic Criticality
• Non-Landau Quantum Phase Transitions and nearly-Marginal non-Fermi Liquid
• Strong correlation between $H$-linear magnetoresistance and strange metal in FeSe superconductor
• Measurements of nematic susceptibility with phase sensitive nuclear magnetic resonance in pulsed strain fields
• Critical pairing fluctuations in the normal state of a superconductor: pseudogap and quasi-particle damping
• Unconventional superconductivity from electronic dipole fluctuations
• Decoupling of Lattice and Orbital Degrees of Freedom in an Iron-Pnictide Superconductor
• Divergence of the quadrupole-strain susceptibility of YbRu${}_2$Ge${}_2$; a local moment realization of electronic nematicity
• Nuclear magnetic resonance studies in a model transverse field Ising system
• Fragile pressure-induced magnetism in FeSe superconductors with a thickness reduction
• Electromagnetic response of cuprate superconductors with coexisting electronic nematicity
• The Emergence of Superconducting Systems in Anti-de Sitter Space
• Nematicity in LaFeAsO single crystals studied by elastoresistance, high-resolution thermal expansion and shear-modulus measurements
• Superconductivity near an Ising nematic quantum critical point in two dimensions
• Emergent Ising degrees of freedom above double-stripe magnetism