Effect of nematic ordering on electronic structure of FeSe

Abstract

Electronically driven nematic order is often considered as an essential ingredient of high-temperature superconductivity. Its elusive nature in iron-based supercon- ductors resulted in a controversy not only as regards its origin but also as to the degree of its influence on the electronic structure even in the simplest representative material FeSe. Here we utilized angle-resolved photoemission spectroscopy and density functional theory calculations to study the influence of the nematic order on the electronic structure of FeSe and determine its exact energy and momentum scales. Our results strongly suggest that the nematicity in FeSe is electronically driven, we resolve the recent controversy and provide the necessary quantitative experimental basis for a successful theory of superconductivity in iron-based materials which takes into account both, spin-orbit interaction and electronic nematicity.

15 pages, 4 figures

References in corpus (8)

• 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
• Observation of two distinct $d_{xz}/d_{yz}$ band splittings in FeSe
• Orbital-dependent Fermi Surface shrinking as a fingerprint of nematicity in FeSe
• Iron isotope effect on the superconducting transition temperature and the crystal structure of FeSe_1-x
• Distinguishing spin-orbit coupling and nematic order in the electronic spectrum of iron-based superconductors
• High-temperature superconductivity from fine-tuning of Fermi-surface singularities in iron oxypnictides
• Simultaneous emergence of superconductivity, inter-pocket scattering and nematic fluctuation in potassium-coated FeSe superconductor

Cited by in corpus (61)

• Discovery of Orbital-Selective Cooper Pairing in FeSe
• Nematicity, magnetism and superconductivity in FeSe
• The key ingredients of the electronic structure of FeSe
• Role of the orbital degree of freedom in iron-based superconductors
• On the Remarkable Superconductivity of FeSe and its Close Cousins
• Exotic Superconducting States in FeSe-based Materials
• Two distinct superconducting pairing states divided by the nematic end point in FeSe${}_{1-x}$S${}_x$
• Highly Anisotropic Superconducting Gap in Nematically Ordered and Tetragonal Phases of FeSe${}_{1-x}$S${}_x$
• Suppression of electronic correlations by chemical pressure from FeSe to FeS
• The Nematic Energy Scale and the Missing Electron Pocket in FeSe
• Electronic anisotropies revealed by detwinned ARPES measurements of FeSe
• Momentum Dependence of the Nematic Order Parameter in Iron-Based Superconductors
• Nematic Pairing from Orbital Selective Spin Fluctuations in FeSe
• Superconductivity in FeSe: the role of nematic order
• 3D superconducting gap in FeSe from ARPES
• Nematicity at the Hund's metal crossover in iron superconductors
• Electronic nematic states tuned by isoelectronic substitution in bulk FeSe1-xSx
• Scaling of the superconducting gap with orbital character in FeSe
• Anomalous temperature evolution of the electronic structure of FeSe
• Detailed band structure of twinned and detwinned BaFe${}_2$As${}_2$ studied with angle-resolved photoemission spectroscopy
• Prominent role of spin-orbit coupling in FeSe
• 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
• Unveiling the hidden nematicity and spin subsystem in FeSe
• Interplay of nematic and magnetic orders in FeSe under pressure
• Nodal gaps in the nematic superconductor FeSe from heat capacity
• Revealing the single electron pocket of FeSe in a single orthorhombic domain
• Strongly enhanced temperature dependence of the chemical potential in FeSe
• Time-reversal symmetry-breaking nematic superconductivity in FeSe
• Shifts and Splittings of the Hole Bands in the Nematic Phase of FeSe
• Superconductivity-induced nematicity
• Orbital order in FeSe - the case for vertex renormalization
• Classification of Symmetry Derived Pairing at M Point in FeSe
• Close proximity of FeSe to a magnetic quantum critical point as revealed by high-resolution $\mu$SR measurements
• The three-dimensional electronic structure of the nematic and antiferromagnetic phases of NaFeAs from detwinned ARPES measurements
• Non-local $d_{xy}$ nematicity and the missing electron pocket in FeSe
• Quantum FFLO state in clean layered superconductors
• $k_z$ selective scattering within Quasiparticle Interference measurements of FeSe
• Raman response in the nematic phase of FeSe
• Orbital transmutation and the electronic spectrum of FeSe in the nematic phase
• Inter-orbital nematicity and the origin of a single electron Fermi pocket in FeSe
• FeSe and the missing electron pocket problem
• Disorder-sensitive node-like small gap in FeSe
• Twisted-bilayer FeSe and the Fe-based superlattices
• Momentum-resolved measurement of electronic nematic susceptibility in the FeSe${}_{0.9}$S${}_{0.1}$ superconductor
• Strongly correlated superconductor with polytypic 3D Dirac points
• Electronic structure and nematic phase transition in superconducting multi-layer FeSe films grown by pulsed laser deposition method
• Anisotropic quasiparticle coherence in nematic BaFe${}_2$As${}_2$ studied with strain-dependent ARPES
• Anomalous contribution to the nematic electronic states from the structural transition in FeSe revealed by time- and angle-resolved photoemission spectroscopy
• Orbital loop currents in iron-based superconductors
• Nematic state of the FeSe superconductor
• Quadrupolar charge dynamics in the nonmagnetic FeSe${}_{1-x}$S${}_x$ superconductors
• Anomalous spectral weight transfer in the nematic state of iron-selenide superconductor
• Potential Lifshitz transition at optimal substitution in nematic pnictide Ba${}_{1-x}$Sr${}_x$Ni${}_2$As${}_2$
• Laser-induced coherent control of an electronic nematic quantum phase transition
• Resurgence of superconductivity and the role of $d_{xy}$ hole band in FeSe${}_{1-x}$Te${}_x$
• Uniaxial stress effect on the electronic structure of quantum materials
• Stronger quantum fluctuation with larger spins: Emergent magnetism in the pressurized high-temperature superconductor FeSe
• Interplay between orbital-quantization effects and the Fulde-Ferrell-Larkin-Ovchinnikov instability in multiple-band layered superconductors
• Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO${}_3$ films
• Nematicity in LaFeAsO single crystals studied by elastoresistance, high-resolution thermal expansion and shear-modulus measurements
• Specific Heat and the gap structure of a Nematic Superconductor, application to FeSe