Interplay of nematic and magnetic orders in FeSe under pressure

Abstract

We offer an explanation for the recently observed pressure-induced magnetic state in the iron-chalcogenide FeSe based on \textit{ab initio} estimates for the pressure evolution of the most important Coulomb interaction parameters. We find that an increase of pressure leads to an overall decrease mostly in the nearest-neighbor Coulomb repulsion, which in turn leads to a reduction of the nematic order and the generation of magnetic stripe order. We treat the concomitant effects of band renormalization and the induced interplay of nematic and magnetic order in a self-consistent way and determine the generic topology of the temperature-pressure phase diagram, and find qualitative agreement with the experimentally determined phase diagram.

arXiv comment13 pages, 6 figs

References in corpus (61)

• Interface induced high temperature superconductivity in single unit-cell FeSe films on SrTiO3
• Superconductivity in single-layer films of FeSe with a transition temperature above 100 K
• Superconductivity at 36 K in beta-Fe1.01Se with the compression of the interlayer separation under pressure
• Frequency-dependent local interactions and low-energy effective models from electronic structure calculations
• Kinetic frustration and the nature of the magnetic and paramagnetic states in iron pnictides and iron chalcogenides
• Divergent nematic susceptibility in an iron arsenide superconductor
• The Structural Phase Transition in FeSe (Fe1+dSe)
• Why Does Undoped FeSe Become A High Tc Superconductor Under Pressure?
• Orbital-driven nematicity in FeSe
• Emergence of the nematic electronic state in FeSe
• Preemptive nematic order, pseudogap, and orbital order in the iron pnictides
• Selective Mottness as a key to iron superconductors
• Effective Coulomb interaction in transition metals from constrained random-phase approximation
• Effect of magnetic frustration on nematicity and superconductivity in Fe chalcogenides
• Comparison of Ab initio Low-Energy Models for LaFePO, LaFeAsO, BaFe2As2, LiFeAs, FeSe and FeTe: Electron Correlation and Covalency
• Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe
• Reconstruction of Band Structure Induced by Electronic Nematicity in an FeSe Superconductor
• Strong Interplay between Stripe Spin Fluctuations, Nematicity and Superconductivity in FeSe
• Origin of the tetragonal-to-orthorhombic (nematic) phase transition in FeSe: a combined thermodynamic and NMR study
• Theoretical evidence for strong correlations and incoherent metallic state in FeSe
• Lifting of xz/yz orbital degeneracy at the structural transition in detwinned FeSe
• Nematicity and quantum paramagnetism in FeSe
• Efficient implementation of the GW approximation within the all-electron FLAPW method
• Magnetic ground state of FeSe
• Tight-binding models for the new iron based superconductor materials
• Observation of universal strong orbital-dependent correlation effects in iron chalcogenides
• Pressure Induced Static Magnetic Order in Superconducting FeSe_1-x
• Anomalous Fermi surface in FeSe seen by Shubnikov-de Haas oscillation measurements
• Unusual band renormalization in the simplest iron based superconductor
• Magnetic degeneracy and hidden metallicity of the spin density wave state in ferropnictides
• Observation of two distinct $d_{xz}/d_{yz}$ band splittings in FeSe
• Coexistence of Superconductivity and Magnetism in FeSe_1-x under Pressure
• Antiferroquadrupolar and Ising-Nematic Orders of a Frustrated Bilinear-Biquadratic Heisenberg Model and Implications for the Magnetism of FeSe
• Strong cooperative coupling of pressure-induced magnetic order and nematicity in FeSe
• Momentum-dependent sign-inversion of orbital polarization in superconducting FeSe
• Fermi-liquid, non-Fermi-liquid, and Mott phases in iron pnictides and cuprates
• Evidence for unidirectional nematic bond ordering in FeSe
• The origin of nematic order in FeSe
• Orbital-dependent Fermi Surface shrinking as a fingerprint of nematicity in FeSe
• Nematicity and magnetism in FeSe and other families of Fe-based superconductors
• U(1) Slave-spin theory and its application to Mott transition in a multi-orbital model for iron pnictides
• Strong $(\pi ,0)$ spin fluctuations in $\beta$-FeSe observed by neutron spectroscopy
• Pressure-induced antiferromagnetic transition and phase diagram in FeSe
• Sign-reversing orbital polarization in the nematic phase of FeSe due to the $C_2$ symmetry-breaking in the self-energy
• Interatomic Coulomb interaction and electron nematic bond order in FeSe
• Pressure Induced Stripe-order Antiferromagnetism and First-order Phase Transition in FeSe
• Effect of nematic ordering on electronic structure of FeSe
• Topological Phases in the Single-Layer FeSe
• Enhanced Superconductivity on the Tetragonal Lattice in FeSe under Hydrostatic Pressure
• Model of Electronic Structure and Superconductivity in Orbitally Ordered FeSe
• Unified picture of the doping dependence of superconducting transition temperatures in alkali metal/ammonia intercalated FeSe
• Unfolding of the electronic structure through the induced representations of space groups: Application to Fe-based superconductors
• Experimental Observation of Incoherent-Coherent Crossover and Orbital Dependent Band Renormalization in Iron Chalcogenide Superconductors
• Microscopic nature of correlations in multi-orbital AFe2As2 (A=K, Rb, Cs): Hund's coupling versus Coulomb repulsion
• Spin excitations in a model of FeSe with orbital ordering
• Fermi surface reconstruction in FeSe under high pressure
• Spin-Driven Nematic Instability of the Multi-Orbital Hubbard Model: Application to Iron-Based Superconductors
• Direct observation of dispersive lower Hubbard band in iron-based superconductor FeSe
• Ab-initio perspective on structural and electronic properties of iron-based superconductors
• Electronic structure properties in the nematic phases of FeSe
• Nematic orders and nematicity-driven topological phase transition in FeSe

Cited by in corpus (30)

• Nematicity, magnetism and superconductivity in FeSe
• The key ingredients of the electronic structure of FeSe
• Orbital selective pairing and gap structures of iron-based superconductors
• On the Remarkable Superconductivity of FeSe and its Close Cousins
• Exotic Superconducting States in FeSe-based Materials
• Maximizing Tc by tuning nematicity and magnetism in FeSe1-xSx superconductors
• Electronic nematic states tuned by isoelectronic substitution in bulk FeSe1-xSx
• Hydrostatic and uniaxial pressure tuning of iron-based superconductors: Insights into superconductivity, magnetism, nematicity and collapsed tetragonal transitions
• Shifts and Splittings of the Hole Bands in the Nematic Phase of FeSe
• Itinerant approach to magnetic neutron scattering of FeSe: effect of orbital selectivity
• Non-local correlations in Iron Pnictides and Chalcogenides
• Eliashberg theory for spin-fluctuations mediated superconductivity -- Application to bulk and monolayer FeSe
• Theoretical study of impurity-induced magnetism in FeSe
• Distinct pressure evolution of coupled nematic and magnetic order in FeSe
• Singular magnetic anisotropy in the nematic phase of FeSe
• Self-consistent temperature dependence of quasiparticle bands in monolayer FeSe on SrTiO${}_3$
• Spin-Orbit Coupling and Magnetic Anisotropy in Iron-Based Superconductors
• Orbital-dependent self-energy effects and consequences for the superconducting gap structure in multi-orbital correlated electron systems
• Hund's metal crossover and superconductivity in the 111 family of iron-based superconductors
• Inter-orbital nematicity and the origin of a single electron Fermi pocket in FeSe
• Basic electronic properties of iron selenide under variation of structural parameters
• Fermi surface, pressure-induced antiferromagnetic order, and superconductivity in FeSe
• Accurate modeling of FeSe with screened Fock exchange and Hund's metal correlations
• Unveiling the quasiparticle behaviour in the pressure-induced high-$T_c$ phase of an iron-chalcogenide superconductor
• Theory of spin-excitation anisotropy in the nematic phase of FeSe obtained from RIXS measurements
• Variation of shear moduli across superconducting phase transitions
• Fragile pressure-induced magnetism in FeSe superconductors with a thickness reduction
• Feedback of non-local $d_{xy}$ nematicity on the magnetic anisotropy in FeSe
• Symmetry-breaking-induced topology in FeSe
• Critical point of the transition between $s_{\pm }$ and $s_{++}$ states of a two-band superconductor with nonmagnetic impurities