Symmetry breaking via orbital-dependent reconstruction of electronic structure in uniaxially strained NaFeAs

Abstract

The superconductivity discovered in iron-pnictides is intimately related to a nematic ground state, where the C4 rotational symmetry is broken via the structural and magnetic transitions. We here study the nematicity in NaFeAs with the polarization dependent angle-resolved photoemission spectroscopy. A uniaxial strain was applied on the sample to overcome the twinning effect in the low temperature C2-symmetric state, and obtain a much simpler electronic structure than that of a twinned sample. We found the electronic structure undergoes an orbital-dependent reconstruction in the nematic state, primarily involving the dxy- and dyz-dominated bands. These bands strongly hybridize with each other, inducing a band splitting, while the dxz-dominated bands only exhibit an energy shift without any reconstruction. These findings suggest that the development of orbital-dependent spin polarization is likely the dominant force to drive the nematicity, while the ferro-orbital ordering between dxz and dyz orbitals can only play a minor role here.

11 pages, 9 figures

References in corpus (18)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• Magnetic Order versus superconductivity in the Iron-based layered La(O1-xFx)FeAs systems
• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Magnetic order in BaFe2As2, the parent compound of the FeAs based superconductors in a new structural family
• Near-degeneracy of several pairing channels in multiorbital models for the Fe-pnictides
• Structural and magnetic phase diagram of CeFeAsO1-xFx and its relationship to high-temperature superconductivity
• Theory of Electron Nematic Order in LaOFeAs
• Pressure induced superconductivity in CaFe${}_2$As${}_2$
• Spin-orbital frustrations and anomalous metallic state in iron-pnictide superconductors
• Magnetism and Charge Dynamics in Iron Pnictides
• Antiferromagnetic superexchange interactions in LaOFeAs
• Orbital Order and Spontaneous Orthorhombicity in Iron Pnictides
• Effect of uniaxial strain on the structural and magnetic phase transitions in BaFe${}_2$As${}_2$
• Topological and Transport Properties of Dirac Fermions in Antiferromagnetic Metallic Phase of Iron-Based Superconductors
• Conductivity anisotropy in the antiferromagnetic state of iron pnictides
• Orbital-weight redistribution triggered by spin order in the pnictides
• Crystal Symmetry and Magnetic Order in Iron Pnictides: a Tight Binding Wannier Function Analysis
• Uniaxial "nematic-like" electronic structure and Fermi surface of untwinned CaFe2As2

Cited by in corpus (104)

• Antiferromagnetic order and spin dynamics in iron-based superconductors
• Interface-induced superconductivity and strain-dependent spin density wave in FeSe/SrTiO3 thin films
• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Electronic crystals: an experimental overview
• Emergence of the nematic electronic state in FeSe
• Angle-resolved photoemission spectroscopy and its application to topological materials
• Reconstruction of Band Structure Induced by Electronic Nematicity in an FeSe Superconductor
• Lifting of xz/yz orbital degeneracy at the structural transition in detwinned FeSe
• Iron based high transition temperature superconductors
• Observation of universal strong orbital-dependent correlation effects in iron chalcogenides
• 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
• Anomalous Fermi surface in FeSe seen by Shubnikov-de Haas oscillation measurements
• Role of the orbital degree of freedom in iron-based superconductors
• Observation of two distinct $d_{xz}/d_{yz}$ band splittings in FeSe
• Momentum-dependent sign-inversion of orbital polarization in superconducting FeSe
• Nematic State of the Pnictides Stabilized by the Interplay Between Spin, Orbital, and Lattice Degrees of Freedom
• Sign-reversing orbital polarization in the nematic phase of FeSe due to the $C_2$ symmetry-breaking in the self-energy
• Distinctive momentum dependence of the band reconstruction in the nematic state of FeSe thin film
• Electronic reconstruction through the structural and magnetic transitions in detwinned NaFeAs
• Pseudogap formation above the superconducting dome in iron-pnictides
• Spin fluctuations in iron pnictides and chalcogenides: From antiferromagnetism to superconductivity
• Electric Transport of a Single Crystal Iron Chalcogenide FeSe Superconductor: Evidence of Symmetry Breakdown Nematicity and Additional Ultrafast Dirac cone-Like Carriers
• Critical Quadrupole Fluctuations and Collective Modes in Iron Pnictide Superconductors
• Angle-resolved photoemission evidence of s-wave superconducting gap in KxFe2-ySe2 superconductor
• Magnetic interactions in iron superconductors: A review
• Highly anisotropic and two-fold symmetric superconducting gap in nematically ordered FeSe${}_{0.93}$S${}_{0.07}$
• Distinguishing spin-orbit coupling and nematic order in the electronic spectrum of iron-based superconductors
• Electronic nematic states tuned by isoelectronic substitution in bulk FeSe1-xSx
• Anisotropic but nodeless superconducting gap in the presence of spin density wave in iron-pnictide superconductor NaFe1-xCoxAs
• Unified phase diagram for iron-based superconductors
• Metal-chalcogen bond-length induced electronic phase transition from semiconductor to topological semimetal in ZrX${}_2$ (X = Se and Te)
• Emergence of Orbital Nematicity in the Tetragonal Phase of BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Unveiling the hidden nematicity and spin subsystem in FeSe
• ARPES measurements of the superconducting gap of Fe-based superconductors and their implications to the pairing mechanism
• Manipulation of gap nodes by uniaxial strain in iron-based superconductors
• In-plane spin excitation anisotropy in the paramagnetic phase of NaFeAs
• Nematic orders in Iron-based superconductors
• Orbital Order and Spin Nematicity in the Tetragonal Phase of Electron-doped Iron-Pnictides NaFe${}_{1-x}$Co${}_x$As
• 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 nematic correlations in the stress free tetragonal state of BaFe${}_{2-x}$Ni${}_x$As${}_2$
• Nematicity driven by hybridization in iron-based superconductors
• Nematic crossover in BaFe${}_2$As${}_2$ under uniaxial stress
• Origin of electronic dimers in the spin-density wave phase of Fe-based superconductors
• Superconductivity without hole-pocket in electron-doped FeSe: Analysis beyond the Migdal-Eliashberg formalism
• Anisotropic resistivity of Na${}_{1-\delta }$Fe${}_{1-x}$Co${}_x$As
• Robust short-range-ordered nematicity in FeSe evidenced by high-pressure NMR
• The three-dimensional electronic structure of the nematic and antiferromagnetic phases of NaFeAs from detwinned ARPES measurements
• Electronic Raman scattering from orbital nematic fluctuations
• Angle-resolved photoemission spectroscopy study on 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
• Critical Slowing Down of Quadrupole and Hexadecapole Orderings in Iron Pnictide Superconductor
• Impact of Dynamic Orbital Correlations on Magnetic Excitations in the Normal State of Iron-Based Superconductors
• A weak-coupling superconductivity in the electron doped NaFe${}_{0.95}$Co${}_{0.05}$As is revealed by ARPES
• Spectral density in a nematic state of iron pnictides
• Orbital-selective spin waves in detwinned NaFeAs
• Tunneling spectroscopy for probing orbital anisotropy in iron pnictides
• Energy scale of nematic ordering in the parent iron-based superconductor:BaFe2As2
• FeSe and the missing electron pocket problem
• Spectral Evidence for Emergent Order in Ba${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$
• Dynamic spin-lattice coupling and nematic fluctuations in NaFeAs
• Electronic structure in one-Fe Brillouin zone of iron-pnictide superconductor CsFe${}_2$As${}_2$
• Raman resonance in iron-based superconductors: The magnetic scenario
• Nematic magnetoelastic effect contrasted between Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ and FeSe
• Suppression of backward scattering of Dirac fermions in iron pnictides Ba(Fe${}_{1-x}$Ru${}_x$As)${}_2$
• Orbital Nematic Order and Interplay with Magnetism in the Two-Orbital Hubbard Model
• Kondo-like mass enhancement of Dirac fermion in iron pnictides Ba(Fe${}_{1-x}$Mn${}_x$As)${}_2$
• Normal state bottleneck and nematic fluctuations from femtosecond quasi-particle relaxation dynamics in Sm(Fe,Co)AsO
• Anomalous spectral weight transfer in the nematic state of iron-selenide superconductor
• Local Structure and Hyperfine Interactions of 57Fe in NaFeAs Studied by Mossbauer Spectroscopy
• Orbital selective neutron spin resonance in underdoped superconducting NaFe${}_{\text{0.985}}$Co${}_{\text{0.015}}$As
• Isostructural spin-density-wave and superconducting gap anisotropies in iron-arsenide superconductors
• Quasiparticle scattering interference in iron pnictides: A probe of the origin of nematicity
• Two-Fluid Description for Iron-Based Superconductors
• The weak electronic correlations and absence of heavy Fermion state in KNi${}_2$Se${}_2$
• Unusual suppression of a spin resonance mode with magnetic field in underdoped NaFe${}_{1-x}$Co${}_x$As: Evidence for orbital-selective pairing
• Resurgence of superconductivity and the role of $d_{xy}$ hole band in FeSe${}_{1-x}$Te${}_x$
• Oriented gap opening in the magnetically ordered state of Iron-pnicitides: an impact of intrinsic unit cell doubling on the $Fe$ square lattice by $As$ atoms
• Nematic superconductivity from selective orbital pairing in Ba(Fe1-xMx)2As2 (M = Co, Ni) single crystals
• Drastic electronic structure reconstruction of Ca${}_{1-x}$Pr${}_x$Fe${}_2$As${}_2$ in the collapsed tetragonal phase
• Strong surface termination dependence of the electronic structure of polar superconductor LaFeAsO revealed by nano-ARPES
• Nematic fluctuations in the non-superconducting iron pnictide BaFe${}_{1.9-x}$Ni${}_{0.1}$Cr${}_x$As${}_2$
• Visualizing the Nonlinear Coupling between Strain and Electronic Nematicity in the Iron Pnictides by Elasto-Scanning Tunneling Spectroscopy
• Influence of orbital nematic order on spin responses in Fe-based superconductors
• Orbital-dependent modulation of the superconducting gap in uniaxially strained Ba${}_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$
• Breaking of four-fold lattice symmetry in a model for pnictide superconductors
• Interplay between local moment and itinerant magnetism in the layered metallic antiferromagnet TaFe${}_{1.14}$Te${}_3$
• An ARPES Study of the Electronic Structure of the Quantum Spin Liquid EtMe3Sb[Pd(dmit)2]2
• Coherence Length of Electronic Nematicity in Iron-Based Superconductors
• Absence of nematic instability in LiFeAs
• Electronically driven nematicity in FeSe Films on SrTiO3
• Orbital-selective electronic excitations in iron arsenides revealed by simulated nonresonant inelastic x-ray scattering
• Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO${}_3$ films
• The influence of the structural transition on magnetic fluctuations in NaFeAs
• Change of Fermi surface states related with two different $T_{\mathrm{c}}$-raising mechanisms in iron pnictide superconductor
• Observation of the bands with $d_{xy}$ orbital character near the Fermi level in NdFeAs${}_{1-x}$P${}_x$O${}_{0.9}$F${}_{0.1}$ using angle-resolved photoemission spectroscopy
• Anisotropic Electronic Mobilities in the Nematic State of the Parent Phase NaFeAs
• Band structure and Fermi surfaces of the reentrant ferromagnetic superconductor Eu(Fe0.86Ir0.14)2As2
• Decoupling of Lattice and Orbital Degrees of Freedom in an Iron-Pnictide Superconductor
• Spinor ice correlation in flat-band electronic states on kagome and pyrochlore lattices with spin-orbit coupling
• Topological Semimetal KAlGe with Novel Electronic Instability
• Electronic Structure Reconstruction across the Antiferromagnetic Transition in TaFe${}_{1.23}$Te${}_3$ Spin Ladder