Nematic and meta-nematic transitions in the iron pnictides

Abstract

Strongly interacting electrons can exhibit novel collective phases, among which the electronic nematic phases are perhaps the most surprising as they spontaneously break rotational symmetry of the underlying crystal lattice. The electron nematicity has been recently observed in the iron-pnictide and cuprate high-temperature superconductors. Whether such a tendency of electrons to self-organise unidirectionally has a common feature in these superconductors is, however, a highly controversial issue. In the cuprates, the nematicity has been suggested as a possible source of the pseudogap phase, whilst in the iron-pnictides, it has been commonly associated with the tetragonal-to-orthorhombic structural phase transition at $T_s$. Here, we provide the first thermodynamic evidence in BaFe2(As1-xPx)2 that the nematicity develops well above the structural transition and persists to the nonmagnetic superconducting regime, resulting in a new phase diagram strikingly similar to the pseudogap phase diagram in the cuprates. Our highly sensitive magnetic anisotropy measurements using microcantilever torque-magnetometry under in-plane field rotation reveal pronounced two-fold oscillations, which break the tetragonal symmetry. Combined with complementary high-resolution synchrotron X-ray and resistivity measurements, our results consistently identify two distinct temperatures - one at $T^{\ast }$, signifying a true nematic transition, and the other at $T_s(<T^{\ast })$, which we show to be not a true phase transition, but rather what we refer to as a "meta-nematic transition", in analogy to the well-known metamagnetic transition in the theory of magnetism. Our observation of the extended nematic phase above the superconducting dome establishes that the nematicity has primarily an electronic origin, inherent in the normal state of high-temperature superconductors.

arXiv commentSee the Nature website for the published version with more detailed doping dependence and discussions

References in corpus (28)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Electronic Liquid Crystal Phases of a Doped Mott Insulator
• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Nematic Fermi Fluids in Condensed Matter Physics
• Theory of Electron Nematic Order in LaOFeAs
• An Intrinsic Bond-Centered Electronic Glass with Unidirectional Domains in Underdoped Cuprates
• Intra-unit-cell electronic nematicity of the high-Tc copper-oxide pseudogap states
• Broken rotational symmetry in the pseudogap phase of a high-Tc superconductor
• Symmetry breaking orbital anisotropy on detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition
• Electronic liquid crystal state in the high-temperature superconductor YBCO(6.45)
• Ising and Spin orders in Iron-based Superconductors
• Electrical Resistivity Anisotropy from Self-Organized One-Dimensionality in High-Temperature Superconductors
• Spin Waves and Magnetic Exchange Interactions in CaFe2As2
• Ferro-Orbital Order and Strong Magnetic Anisotropy in the Parent Compounds of Iron-Pnictide Superconductors
• Preemptive nematic order, pseudogap, and orbital order in the iron pnictides
• Effects of nematic fluctuations on the elastic properties of iron arsenide superconductors
• Uniaxial strain detwinning of CaFe2As2 and BaFe2As2: optical and transport study
• Orbital-Ordering Induces Structural Phase Transition and the Resistivity Anomaly in Iron Pnictides
• Rotational Symmetry Breaking in the Hidden-Order Phase of URu2Si2
• Line nodes in the energy gap of high-temperature superconducting BaFe_2(As_{1-x}P_x)_2 from penetration depth and thermal conductivity measurements
• Orbital Order and Spontaneous Orthorhombicity in Iron Pnictides
• Unconventional superconductivity and antiferromagnetic quantum critical behavior in the isovalent-doped BaFe2(As1-xPx)2
• Evolution of the Fermi surface of BaFe_2(As_{1-x}P_x)_2 on entering the superconducting dome
• Nanoscale electronic order in iron pnictides
• Finite temperature spin-dynamics and phase transitions in spin-orbital models
• Thermodynamic phase diagram and phase competition in BaFe2(As1-xPx)2 studied by thermal expansion
• Exchange Constants and Neutron Spectra of Iron Pnictide Materials
• Interplay of orbital and spin ordering in the iron pnictides

Cited by in corpus (291)

• Nematic order in iron superconductors - who is in the driver's seat?
• Divergent nematic susceptibility in an iron arsenide superconductor
• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Magnetism and its microscopic origin in iron-based high-temperature superconductors
• Iron-Based Superconductors: current status of materials and pairing mechanism
• Quantum critical point lying beneath the superconducting dome in iron-pnictides
• Are non-Fermi-liquids stable to Cooper pairing?
• Reconstruction of Band Structure Induced by Electronic Nematicity in an FeSe Superconductor
• Thermodynamic evidence for nematic superconductivity in Cu${}_x$Bi${}_2$Se${}_3$
• Thermodynamic evidence for nematic phase transition at the onset of pseudogap in YBa${}_2$Cu${}_3$O${}_y$
• Lifting of xz/yz orbital degeneracy at the structural transition in detwinned FeSe
• Self-Consistent Vertex Correction Analysis for Iron-Based Superconductors: Mechanism of Coulomb-Interaction-Driven Orbital Fluctuations
• Anomalous thermal conductivity and magnetic torque response in the honeycomb magnet $\alpha$-RuCl${}_3$
• Nematic spin correlations in the tetragonal state of uniaxial strained BaFe2-xNixAs2
• Visualization of Electron Nematicity and Unidirectional Antiferroic Fluctuations at High Temperatures in NaFeAs
• Observation of incipient charge nematicity in Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Nematic susceptibility of hole- and electron-doped BaFe2As2 iron-based superconductors from shear modulus measurements
• Magnetically-Driven Suppression of Nematic Order in an Iron-Based Superconductor
• Magnetoresistance near a quantum critical point
• Rotational Symmetry Breaking in a Trigonal superconductor Nb-doped Bi2Se3
• Manifestations of nematic degrees of freedom in the magnetic, elastic, and superconducting properties of the iron pnictides
• Low-energy microscopic models for iron-based superconductors: a review
• Pseudogap from ARPES experiment: three gaps in cuprates and topological superconductivity
• A parity-breaking electronic nematic phase transition in the spin-orbit coupled metal Cd${}_2$Re${}_2$O${}_7$
• Anisotropic Impurity-States, Quasiparticle Scattering and Nematic Transport in Underdoped Ca(Fe1-xCox)2As2
• Exotic Superconducting States in FeSe-based Materials
• Giant superconducting fluctuations in the compensated semimetal FeSe at the BCS-BEC crossover
• Nematicity as a probe of superconducting pairing in iron-based superconductors
• Transport near the Ising-nematic quantum critical point of metals in two dimensions
• Excitonic condensation in systems of strongly correlated electrons
• Charge Nematicity and Electronic Raman Scattering in Iron-based Superconductors
• Electronic nematic susceptibility of iron-based superconductors
• Electronic in-plane symmetry breaking at field-tuned quantum criticality in CeRhIn5
• Two distinct superconducting pairing states divided by the nematic end point in FeSe${}_{1-x}$S${}_x$
• Sign-reversal of the in-plane resistivity anisotropy in iron pnictides
• Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron pnictides
• Nematic State of the Pnictides Stabilized by the Interplay Between Spin, Orbital, and Lattice Degrees of Freedom
• Nematic superconductivity in doped Bi2Se3 topological superconductors
• Measurement of the elastoresistivity coefficients of the underdoped iron-arsenide Ba(Fe${}_{0.975}$Co${}_{0.025}$)${}_2$As${}_2$
• Spin fluctuations in iron pnictides and chalcogenides: From antiferromagnetism to superconductivity
• Pseudogap formation above the superconducting dome in iron-pnictides
• Search for a spin-nematic phase in the quasi-one-dimensional frustrated magnet LiCuVO${}_4$
• Interatomic Coulomb interaction and electron nematic bond order in FeSe
• Pressure Induced Stripe-order Antiferromagnetism and First-order Phase Transition in FeSe
• Novel Pauli-paramagnetic quantum phase in a Mott insulator
• Scaling between magnetic and lattice fluctuations in iron-pnictide superconductors
• Electric Toroidal Quadrupoles in Spin-Orbit Coupled Metal Cd${}_2$Re${}_2$O${}_7$
• The Nematic Energy Scale and the Missing Electron Pocket in FeSe
• Ultrafast observation of critical nematic fluctuations and giant magnetoelastic coupling in iron pnictides
• Magnetic interactions in iron superconductors: A review
• Nanoscale decoupling of electronic nematicity and structural anisotropy in FeSe thin films
• Spin-Fluctuation-Driven Nematic Charge-Density-Wave in Cuprate Superconductors: Impact of Aslamazov-Larkin-Type Vertex Correction
• Infrared Measurement of the Pseudogap in P-Doped and Co-Doped BaFe2As2 High-Temperature Superconductors
• Superconductivity from orbital nematic fluctuations
• Spin excitation anisotropy as a probe of orbital ordering in the paramagnetic tetragonal phase of superconducting BaFe1.904Ni0.096As2
• Spin-state transition in the Fe-pnictides
• Local orbital degeneracy lifting as a precursor to an orbital-selective Peierls transition
• High-Tc Superconductivity near the Anion Height Instability in Fe-based Superconductors: Analysis of LaFeAsO${}_{1-x}$H${}_x$
• Direct observation of lattice symmetry breaking at the hidden-order transition in URu2Si2
• The phase diagrams of iron-based superconductors: theory and experiments
• Diagonal Nematicity in the Pseudogap Phase of HgBa${}_2$CuO${}_{4+\delta }$
• Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors
• 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${}_2$ ($0.22\le x\le 1$)
• Thermopower as sensitive probe of electronic nematicity in iron pnictides
• Suppression of superconductivity by Neel-type magnetic fluctuations in the iron pnictides
• Fermiology, Orbital Order, Orbital Fluctuation and Cooper Pairing in Iron-based Superconductors
• Superconductivity and its mechanism in an ab initio model for electron-doped LaFeAsO
• Linear Response Theory for Shear Modulus $C_{66}$ and Raman Quadrupole Susceptibility: Significant Evidence for Orbital Nematic Fluctuations in Fe-Based Superconductors
• Dynamic competition between spin density wave order and superconductivity in underdoped $B{a}_{1-x}{K}_{x}F{e}_{2}A{s}_2$
• Checkerboard stripe electronic state on cleaved surface of NdO${}_{0.7}$F${}_{0.3}$BiS${}_2$ probed by scanning tunneling microscope
• Evidence of nematic order and nodal superconducting gap along [110] direction in RbFe2As2
• Anisotropic but nodeless superconducting gap in the presence of spin density wave in iron-pnictide superconductor NaFe1-xCoxAs
• Pressure decoupled magnetic and structural transitions of the parent compound of iron based 122 superconductors BaFe2As2
• Singularity of the London penetration depth at quantum critical points in superconductors
• Influence of interstitial Fe to the phase diagram of Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$ single crystals
• Nodal gap structure in Fe-based superconductors due to the competition between orbital and spin fluctuations
• Elastic coupling and spin-driven nematicity in iron-based superconductors
• Quasi-particle evidence for the nematic state above $T_{\mathrm{c}}$ in Sr${}_x$Bi${}_2$Se${}_3$
• Emergent XY electronic nematicity in iron-based superconductors
• Emergence of Orbital Nematicity in the Tetragonal Phase of BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Emergent defect states as a source of resistivity anisotropy in the nematic phase of iron pnictides
• Discovery of a strain-stabilised smectic electronic order in LiFeAs
• Lifted electron pocket and reversed orbital occupancy imbalance in FeSe
• NMR evidence for inhomogeneous nematic fluctuations in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Competing instabilities, orbital ordering and splitting of band degeneracies from a parquet renormalization group analysis of a 4-pocket model for iron-based superconductors: application to FeSe
• Optical conductivity of iron-based superconductors
• Impact of Uniaxial Pressure on Structural and Magnetic Phase Transitions in Electron-Doped Iron Pnictides
• Observation of Magnetopiezoelectric Effect in Antiferromagnetic Metal EuMnBi2
• Nematic resonance in the Raman response of iron-based superconductors
• NMR evidence for static local nematicity and its cooperative interplay with low-energy magnetic fluctuations in FeSe under pressure
• Normal state spin dynamics in the iron-pnictide superconductors BaFe2(As1-xPx)2 and Ba(Fe1-xCox)2As2 probed with NMR measurements
• ARPES measurements of the superconducting gap of Fe-based superconductors and their implications to the pairing mechanism
• Local orthorhombicity in the magnetic $C_4$ phase of the hole-doped iron-arsenide superconductor Sr${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$
• Manipulation of gap nodes by uniaxial strain in iron-based superconductors
• Dichotomy between in-plane magnetic susceptibility and resistivity anisotropies in extremely strained $BaF{e}_{2}A{s}_2$
• Evidence for nematic superconductivity of topological surface states in PbTaSe2
• Coincident structural and magnetic order in BaFe${}_2$(As${}_{1-x}$)P${}_x$)${}_2$ revealed by high-resolution neutron diffraction
• Rhombic skyrmion lattice coupled with orthorhombic structural distortion in EuAl${}_4$
• Evidence for Orbital Order and its Relation to Superconductivity in FeSe0.4Te0.6
• In-plane spin excitation anisotropy in the paramagnetic phase of NaFeAs
• Non-Fermi liquid transport in the vicinity of nematic quantum critical point of FeSe${}_{1-x}$S${}_x$ superconductor
• Persistent detwinning of iron pnictides by small magnetic fields
• Orbital Order and Spin Nematicity in the Tetragonal Phase of Electron-doped Iron-Pnictides NaFe${}_{1-x}$Co${}_x$As
• Resolving the Electronic Ground State of La3Ni2O7-δ Films
• What is the minimal model of magnetic interactions in Fe-based superconductors?
• Spin-Driven Nematic Instability of the Multi-Orbital Hubbard Model: Application to Iron-Based Superconductors
• Hydrostatic and uniaxial pressure tuning of iron-based superconductors: Insights into superconductivity, magnetism, nematicity and collapsed tetragonal transitions
• The form and the origin of the orbital ordering in the electronic nematic phase of the Iron-based superconductors
• Revealing the single electron pocket of FeSe in a single orthorhombic domain
• Uniaxial pressure effect on structural and magnetic phase transitions in NaFeAs and its comparison with as-grown and annealed BaFe${}_2$As${}_2$
• Neutron-scattering measurements of the spin excitations in LaFeAsO and Ba(Fe${}_{0.953}$Co${}_{0.047}$)${}_2$As${}_2$: Evidence for a sharp enhancement of spin fluctuations by nematic order
• Electronic phase separation in iron pnictides
• Spin-orbital interplay and topology in the nematic phase of iron pnictides
• Incommensurate smectic phase in close proximity to the high-Tc superconductor FeSe/SrTiO3
• Anomalous Itinerant-Electron Metamagnetic Transition in the Layered Sr1-xCaxCo2P2 System
• Signatures of quantum criticality in the thermopower of Ba(Fe(1-x)Co(x))2As2
• Anisotropic Non-Fermi Liquids
• Manifestation of nematic degrees of freedom in the Raman response function of iron pnictides
• Coexistence of orbital degeneracy lifting and superconductivity in iron-based superconductors
• Nematic crossover in BaFe${}_2$As${}_2$ under uniaxial stress
• Nematicity driven by hybridization in iron-based superconductors
• Unconventional density waves and superconductivities in Fe-based superconductors and other strongly correlated electron systems
• Hall-plot of the phase diagram for Ba(Fe1-xCox)2As2
• Electronic nematic correlations in the stress free tetragonal state of BaFe${}_{2-x}$Ni${}_x$As${}_2$
• $p$-orbital density wave with $d$ symmetry in high-$T_c$ cuprate superconductors predicted by the renormalization-group + constrained RPA theory
• Origin of electronic dimers in the spin-density wave phase of Fe-based superconductors
• Local orthorhombic lattice distortions in the paramagnetic tetragonal phase of superconducting NaFe${}_{1-x}$Ni${}_x$As
• On infrared pseudogap in cuprate and pnictide high-temperature superconductors
• Universality of dispersive spin-resonance mode in superconducting BaFe2As2
• Imaging anomalous nematic order and strain in optimally doped BaFe${}_2$(As,P)${}_2$
• Nematicity and in-plane anisotropy of superconductivity in $\beta$-FeSe detected by ${}^{77}$Se nuclear magnetic resonance
• Charge-Stripe Order in a Parent Compound of Iron-based Superconductors
• A crossover in phase diagram of NaFe${}_{1-x}$Co${}_x$As determined by electronic transport measurements
• Symmetry of re-entrant tetragonal phase in Ba1-xNaxFe2As2: Magnetic versus orbital ordering mechanism
• Effect of nematic order on the low-energy spin fluctuations in detwinned BaFe${}_{1.935}$Ni${}_{0.065}$As${}_2$
• Broken symmetries in URu2Si2
• Strong Coupling of the Iron-Quadrupole and Anion-Dipole Polarizations in Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Phase-sensitive evidence for the sign-reversal s+- symmetry of the order parameter in an iron-pnictide superconductor using Nb/Ba1-xNaxFe2As2 Josephson junctions
• Spectroscopic Evidence for Strong Quantum Spin Fluctuations with Itinerant Character in YFe2Ge2
• Temperature dependence of the paramagnetic spin excitations in BaFe${}_2$As${}_2$
• Scaling behaviour and superconducting instability in anisotropic non-Fermi liquids
• Electronic Raman scattering from orbital nematic fluctuations
• Anisotropic electrical resistivity of LaFeAsO: evidence for electronic nematicity
• Nematic and spin-charge orders driven by hole-doping a charge-transfer insulator
• Interplane resistivity of underdoped single crystals (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$, $0\le x<0.34$
• Edge states at nematic domain walls in FeSe films
• Discovery of mesoscopic nematicity wave in iron-based superconductors
• Nematicity from mixed S_{+-} + d_{x^2-y^2} states in iron-based superconductors
• Effects of Lifshitz Transition on Charge Transport in Magnetic Phases of Fe-Based Superconductors
• The evolution of antiferromagnetic susceptibility to uniaxial pressure in Ba(Fe{1-x}Co{x})2As2
• Bond Directional Anapole Order in a Spin-Orbit Coupled Mott Insulator Sr${}_2$(Ir${}_{1-x}$Rh${}_x$)O${}_4$
• Thermodynamic approach to electric quadrupole moments
• Effect of realistic finite-size impurities on Tc in Fe-based superconductors based on the five-orbital tight-binding model
• Spin nematic fluctuations near a spin-density-wave phase
• Visualization of the effect of structural supermodulation on electronic structure in IrTe${}_2$ by scanning tunneling spectroscopy
• Imaging Nematic Transitions in Iron-Pnictide Superconductors with a Quantum Gas
• Spin-Fluctuation-Driven Orbital Nematic Order in Ru-Oxides: Self-Consistent Vertex Correction Analysis for Two-Orbital Model
• Critical Slowing Down of Quadrupole and Hexadecapole Orderings in Iron Pnictide Superconductor
• Inter-plane resistivity of isovalent doped BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Short-range nematic fluctuations in Sr1-xNaxFe2As2 superconductors
• Polar State induced by Block-type Lattice Distortions in BaFe2Se3 with Quasi-One-Dimensional Ladder Structure
• Charge and nematic orders in AFe${}_2$As${}_2$ (A= Rb,Cs) superconductors
• Unusual Nonmagnetic Ordered State in CeCoSi Revealed by ${}^{59}$Co-NMR and NQR Measurements
• Effect of magnetism on lattice dynamics in SrFe${}_2$As${}_2$ as seen via high resolution inelastic x-ray scattering
• HHG-laser-based time- and angle-resolved photoemission spectroscopy of quantum materials
• Anomalous symmetry breaking in Weyl semimetal CeAlGe
• Magnetic phase diagram of the iron pnictides in the presence of spin-orbit coupling: Frustration between $C_2$ and $C_4$ magnetic phases
• Two-Fold-Symmetric Magnetoresistance in Single Crystals of Tetragonal BiCh2-Based Superconductor LaO0.5F0.5BiSSe
• Local nematic susceptibility in stressed BaFe${}_2$As${}_2$ from NMR electric field gradient measurements
• Order parameter fluctuation and ordering competition in $\mathrm{B}{\mathrm{a}}_{1-\mathrm{x}}{\mathrm{K}}_{\mathrm{x}}\mathrm{F}{\mathrm{e}}_2\mathrm{A}{\mathrm{s}}_2$
• Hidden antiferro-nematic order in Fe-based superconductor BaFe${}_2$As${}_2$ and NaFeAs above $T_S$
• Doping dependence of the anisotropic quasiparticle interference in NaFe1-xCoxAs iron-based superconductors
• Disorder-robust high-field superconducting phase of FeSe single crystals
• Study of the electronic nematic phase of Sr${}_3$Ru${}_2$O${}_7$ with precise control of the applied magnetic field vector
• Tunneling spectroscopy for probing orbital anisotropy in iron pnictides
• Electronic Nematicity Revealed by Torque Magnetometry in Iron Arsenide EuFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Field-induced nematic-like magnetic transition in an iron pnictide superconductor, Ca${}_{10}$(Pt${}_3$As${}_8$)((Fe${}_{1-x}$Pt${}_x$)${}_2$As${}_2$)${}_5$
• Phase stability and large in-plane resistivity in the 112-type iron-based superconductor Ca${}_{1-x}$La${}_x$FeAs${}_2$
• Phonon Anomalies, Orbital-Ordering and Electronic Raman Scattering in iron-pnictide Ca(Fe0.97Co0.03)2As2: Temperature-dependent Raman Study
• Effect of SDW fluctuations on the specific heat jump in iron pnictides at a superconducting transition
• Charge order driven by multiple-Q spin fluctuations in heavily electron-doped iron selenide superconductors
• Raman scattering study of spin-density-wave-induced anisotropic electronic properties in AFe2As2 (A=Ca,Eu)
• Diverging Nematic Susceptibility, Physical Meaning of T* scale, and Pseudogap in the Spin Fermion Model for Pnictides
• Antiferromagnetism in Iron-Based Superconductors: Selection of Magnetic Order and Quasiparticle Interference
• Giant Anisotropic Magnetoresistance due to Purely Orbital Rearrangement in the Quadrupolar Heavy Fermion Superconductor PrV${}_2$Al${}_{20}$
• Evolution of Anisotropic In-plane Resistivity with doping level in Ca${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$ Single Crystals
• Elementary Excitations due to Orbital Degrees of Freedom in Iron Based Superconductors
• Dimensionality, nematicity and Superconductivity in Fe-based systems
• Optical observation of spin-density-wave fluctuations in Ba122 iron-based superconductors
• Superconductivity and Frozen Electronic States at the (111) LaAlO${}_3$/SrTiO${}_3$ Interface
• Nematic magnetoelastic effect contrasted between Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ and FeSe
• Transport signatures of spatially modulated electronic nematic phases
• Importance of dxy orbital and electron correlation in iron-based superconductors revealed by phase diagram for 1111-system
• Pure nematic state in iron-based superconductor
• Two-fold symmetry of in-plane magnetoresistance anisotropy in the superconducting states of BiCh2-based LaO0.9F0.1BiSSe single crystal
• Diamagnetic Vortex Barrier Stripes in Underdoped $BaF{e}_2(A{s}_{1-x}{P}_x{)}_2$
• Simultaneous Vanishing of the Nematic Electronic State and the Structural Orthorhombicity in NaFe${}_{1-x}$Co${}_x$As Single Crystals
• Possible Bicollinear Nematic State with Monoclinic Lattice Distortions in Iron Telluride Compounds
• Structural phase transition, precursory electronic anomaly and strong-coupling superconductivity in quasi-skutterudite (Sr${}_{1-x}$Ca${}_x$)${}_3$Ir${}_4$Sn${}_{13}$ and Ca${}_3$Rh${}_4$Sn${}_{13}$
• Memory function approach to in-plane anisotropic resistivity in the antiferromagnetic phase of iron arsenide superconductors
• Orbital Nematic Order and Interplay with Magnetism in the Two-Orbital Hubbard Model
• Stress-induced nematicity in EuFe2As2 studied by phononic Raman spectroscopy
• Point Contact Spectroscopy of Fe Pnictides & Chalcogenides In The Normal State
• Thermodynamic evidence for broken fourfold rotational symmetry in the hidden-order phase of URu2Si2
• Quantum Criticality in the 122 Iron Pnictide Superconductors Emerging from Orbital-Selective Mottness
• Observation of isosceles triangular electronic structure around excess iron atoms in Fe${}_{1+\delta }$Te
• Quadrupolar charge dynamics in the nonmagnetic FeSe${}_{1-x}$S${}_x$ superconductors
• Driving force of the orbital-relevant electronic nematicity in Fe-based superconductors
• Controllable emergent spatial spin modulation in Sr2IrO4 by in situ shear strain
• Signatures of Electronic Nematicity in (111) LaAlO${}_3$/SrTiO${}_3$ Interfaces
• New method for torque magnetometry using a commercially available membrane-type surface-stress sensor
• Raman scattering as a probe of charge nematic fluctuations in iron based superconductors
• Dependence of the absolute value of the penetration depth in $(\mathbf{B}{\mathbf{a}}_{1-\mathbf{x}}{\mathbf{K}}_{\mathbf{x}})\mathbf{F}{\mathbf{e}}_2\mathbf{A}{\mathbf{s}}_2$ on doping
• Quasi-one Dimensional Nanostructures as Sign of Nematicity in Iron Pnictides and Chalcogenides
• Two-Fluid Description for Iron-Based Superconductors
• Exotic phase transition and superconductivity in layered titanium-oxypnictides implied by a computational phonon analysis
• Quasiparticle scattering interference in iron pnictides: A probe of the origin of nematicity
• Nematic state stabilized by off-site Coulomb interaction in iron-based superconductors
• Study of antiferromagnetic and nematic phase transitions in $BaF{e}_2(A{s}_{1-x}{P}_x{)}_2$ by AC micro-calorimetry and SQUID magnetometry
• Quasiparticle interference in doped topological insulators with nematic superconductivity
• Magnetism driven by strong electronic correlation in the heavily carrier-doped iron oxypnictide LaFeAsO${}_{0.49}$H${}_{0.51}$
• Superconductivity at the vacancy disorder boundary in K${}_x$Fe${}_{2-y}$Se${}_2$
• Magnetic-Field-Induced Spin Nematicity in FeSe1-xSx and FeSe1-yTey Superconductor Systems
• Zigzag chain structure transition and orbital fluctuations in Ni-based superconductors
• Direct observation of spin excitation anisotropy in the paramagnetic orthorhombic state of BaFe${}_{2-x}$Ni${}_x$As${}_2$
• Disorder-Induced Electronic Nematicity
• Semimetallic spin-density wave state in iron pnictides
• Disappearance and Survival of Superconductivity in FeSe under High Pressure
• Unveiling the multiband metallic nature of the normal state in nickelate La3Ni2O7
• Structural Phase Transition, Antiferromagnetism and Two Superconducting Domes in LaFeAsO${}_{1-x}$F${}_x$ (0 $<x\le$ 0.75)
• Mean-field theory on a coupled system of ferromagnetism and electronic nematic order
• Ubiquitous stripe phase and enhanced electron pairing in interfacial high-Tc superconductor FeSe/BaTiO${}_3$
• Thermoelectric signature of the nematic phase in iron-based superconductor
• Defect-induced electronic smectic state at the surface of nematic materials
• Possible coexistence of double-Q magnetic order and chequerboard charge order in the re-entrant tetragonal phase of Ba0.76K0.24Fe2As2
• Nematic response revealed by coherent phonon oscillations in BaFe${}_2$As${}_2$
• Phase transitions in a frustrated biquadratic Heisenberg model with coupled orbital degree of freedom for iron-based superconductors
• Nematic fluctuations in the non-superconducting iron pnictide BaFe${}_{1.9-x}$Ni${}_{0.1}$Cr${}_x$As${}_2$
• Surface Nematic Order in Iron Pnictides
• Interplay between Multipolar Order and Multipole-Induced Superconductivity in PrTi${}_2$Al${}_{20}$
• Enhanced Phonon-Phonon Interactions and Weakened Electron-Phonon Coupling in Charge-Density-Wave Topological Semimetal EuAl4 with a Possible Intermediate Electronic State
• Diverse Exotic Orders and Fermiology in Fe-based Superconductors: A Unified Mechanism for $B_{1g}/B_{2g}$ Nematicity in FeSe/(Cs,Rb)Fe${}_2$As${}_2$ and Smectic Order in BaFe${}_2$As${}_2$
• Mössbauer studies of spin- and charge-modulations in BaFe2(As1-xPx)2
• Surface symmetry breaking and disorder effects on superconductivity in perovskite BaBi3 epitaxial films
• c-axis pressure induced antiferromagnetic order in optimally P-doped BaFe2(As0.70P0.30)2 superconductor
• Landau theory for magnetic and structural transitions in CeCo${}_{0.85}$Fe${}_{0.15}$Si
• Magnetoelastic coupling and charge correlation lengths in a twin domain of Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ ($x=0.047$): A high-resolution X-ray diffraction study
• Combined resistivity and Hall effect study on NaFe${}_{1-x}$Rh${}_x$As single crystals
• Influence of orbital nematic order on spin responses in Fe-based superconductors
• Possible Nematic Order Driven by Magnetic Fluctuations in Iron Pnictides
• Nematic Fluctuations in Iron-Oxychalcogenide Mott Insulators
• The driving mechanism of the d-wave orbital order in the iron-based superconductors
• ${}^{31}$P NMR studies of an iron-based superconductor Ba${}_{0.5}$Sr${}_{0.5}$Fe${}_2$(As${}_{1-x}$P${}_x$)${}_2$ with $T_{\mathrm{c}}$ = 29 K
• Magnetic anisotropy from linear defect structures in correlated electron systems
• Multi-orbital quantum antiferromagnetism in iron pnictides --- effective spin couplings and quantum corrections to sublattice magnetization
• Coherence Length of Electronic Nematicity in Iron-Based Superconductors
• Nuclear Magnetic Resonance in Low-Symmetry Superconductors
• Unusual normal and superconducting state properties observed in hydrothermal Fe1-xSe flakes
• Orbital ordering transition in the single-layer manganites near half doping: a weak-coupling approach
• Microscopic origin of the nemato-elastic coupling and dynamics of hybridized collective nematic-phonon excitations
• Exploring Novel Quantum Criticality in Strained Graphene
• Modulation of pairing symmetry with bond disorder in unconventional superconductors
• Intrinsic pinning of FeSe${}_1$${}_{-}$${}_x$S${}_x$ single crystals probed by torque magnetometry
• The influence of the structural transition on magnetic fluctuations in NaFeAs
• Impact of disorder in the charge-density-wave state of Pd-intercalated ErTe${}_3$ revealed by the electrodynamic response
• Electronically driven nematicity in FeSe Films on SrTiO3
• Optical study on electronic structure of the locally non-centrosymmetric CeRh${}_2$As${}_2$
• Fluctuated spin-orbital texture of Rashba-split surface states in real and reciprocal space
• Strain-activated structural anisotropy in BaFe2As2
• Superconductivity near a nematoelastic quantum critical point
• Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO${}_3$ films
• Coupled multiple-mode theory for $s_{\pm }$ pairing mechanism in iron based superconductors
• Importance of both spin and orbital fluctuations in BaFe2(As1-xPx)2 : Evidence from superconducting gap anisotropy
• Disordered non-Fermi liquid fixed point for two-dimensional metals at Ising-nematic quantum critical points
• The interactions between antiferromagnetism, tetrahedral sites and electron-phonon coupling in FeSe1-xTex and FeSe/SrTiO3
• Utilization of mechanical alloying method for flux growth of single crystalline BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Non Linear Susceptibility from High DC Field Torque Magnetometry
• Crossover of Superconductivity across the antiferromagnetic end point in FeSe${}_{1-\mathrm{x}}$S${}_{\mathrm{x}}$ under pressure
• Atomic-scale imaging of electronic nematicity in ferropnictides
• Magnetic form factor analysis on detwinned single crystal of BaFe${}_2$As${}_2$
• Edwards-Anderson parameter and local Ising-nematicity in FeSe revealed via NMR spectral broadening
• Time-Resolved Photoemission Spectroscopy of Quantum Materials Using High Harmonic Generation: Probing Electron-Phonon Interactions and Non-Equilibrium Dynamics
• Nematic Metal and Antiferromagnetic Insulator on Hexagonal Kagome Lattice
• Orbital-lattice coupling and orbital ordering instability in iron pnictides
• Magneto-orbital coupling in iron pnictides
• Origin of in-plane anisotropic resistivity in the antiferromagnetic phase of Fe${}_{1+x}$Te
• Hund's coupling and electronic anisotropy in the spin-density wave state of iron pnictides
• Superconductivity near an Ising nematic quantum critical point in two dimensions
• Energy-Resolved Real-Space Imaging of Orbital Nematicity in an Fe-Based Superconductor
• Topological Semimetal KAlGe with Novel Electronic Instability
• Fragile pressure-induced magnetism in FeSe superconductors with a thickness reduction