Competing magnetic double-Q phases and superconductivity-induced re-entrance of C2 magnetic stripe order in iron pnictides

Abstract

We perform a microscopic theoretical study of the generic properties of competing magnetic phases in iron pnictides. As a function of electron filling and temperature, the magnetic stripe (single-Q) order forms a dome, but competing non-collinear and non-uniform double-Q phases exist at the foot of the dome in agreement with recent experiments. We compute and compare the electronic properties of the different magnetic phases, investigate the role of competing superconductivity, and show how disorder may stabilize double-Q order. Superconductivity is shown to compete more strongly with double-Q magnetic phases, which can lead to re-entrance of the C2 (single-Q) order in agreement with recent thermal expansion measurements on K-doped Ba-122 crystals.

5 pages, 5 figures, Supplementary Material

References in corpus (11)

• Superconductivity-induced reentrance of orthorhombic distortion in Ba1-xKxFe2As2
• Competing orders in FeAs layers
• Antiferromagnetic ordering in the absence of a structural distortion in Ba(Fe{1-x}Mn{x})2As2
• Spin reorientation in Na-doped BaFe${}_2$As${}_2$ studied by neutron diffraction
• Pairing symmetry of the one-band Hubbard model in the paramagnetic weak-coupling limit: a numerical RPA study
• New Phase Induced by Pressure in the Iron-Arsenide Superconductor K-Ba122
• Competition between stripe and checkerboard magnetic instabilities in Mn-doped BaFe2As2
• Enhancing magnetic stripe order in iron pnictides by RKKY exchange interactions
• Magnetic order without tetragonal-symmetry-breaking in iron arsenides: microscopic mechanism and spin-wave spectrum
• Muon-spin-rotation study of the magnetic structure in the tetragonal antiferromagnetic state of weakly underdoped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Infrared study of the spin reorientation transition and its reversal in the superconducting state in underdoped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$

Cited by in corpus (47)

• Superconductivity-induced reentrance of orthorhombic distortion in Ba1-xKxFe2As2
• Low-energy microscopic models for iron-based superconductors: a review
• Magnetism, superconductivity, and spontaneous orbital order in iron-based superconductors: who comes first and why?
• On the Remarkable Superconductivity of FeSe and its Close Cousins
• Double-Q spin-density wave in iron arsenide superconductors
• Electronic nematic susceptibility of iron-based superconductors
• Hedgehog spin-vortex crystal stabilized in a hole-doped iron-based superconductor
• Spin-orbit phase behaviors of Na2Co2TeO6 at low temperatures
• Enhancing Superconductivity by Disorder
• Complex phase diagram of Ba${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$: a multitude of phases striving for the electronic entropy
• Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors
• Spin reorientation driven by the interplay between spin-orbit coupling and Hund's rule coupling in iron pnictides
• Detailed magnetic and structural analysis mapping a robust magnetic C4 dome in Sr1-xNaxFe2As2
• 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
• Disorder-promoted $C_4$-symmetric magnetic order in iron-based superconductors
• Spin-Driven Nematic Instability of the Multi-Orbital Hubbard Model: Application to Iron-Based Superconductors
• Spin Waves in Detwinned BaFe${}_2$As${}_2$
• Topological Superconductivity Induced by Magnetic Texture Crystals
• Unravelling incommensurate magnetism and its emergence in iron-based superconductors
• Expansion of the tetragonal magnetic phase with pressure in the iron-arsenide superconductor Ba{1-x}KxFe2As2
• Role of multiorbital effects in the magnetic phase diagram of iron-pnictides
• Theoretical study of impurity-induced magnetism in FeSe
• Emergent magnetic degeneracy in iron pnictides due to the interplay between spin-orbit coupling and quantum fluctuations
• Spin-Orbit Coupling and Magnetic Anisotropy in Iron-Based Superconductors
• Short-range nematic fluctuations in Sr1-xNaxFe2As2 superconductors
• Order parameter fluctuation and ordering competition in $\mathrm{B}{\mathrm{a}}_{1-\mathrm{x}}{\mathrm{K}}_{\mathrm{x}}\mathrm{F}{\mathrm{e}}_2\mathrm{A}{\mathrm{s}}_2$
• Intertwined spin-orbital coupled orders in the iron-based superconductors
• Magnetic phase diagram of the iron pnictides in the presence of spin-orbit coupling: Frustration between $C_2$ and $C_4$ magnetic phases
• Anomalous Composition-Induced Crossover in the Magnetic Properties of the Itinerant-Electron Antiferromagnet Ca{1-x}Sr{x}Co{2-y}As{2}
• Collective magnetic excitations of $C_4$ symmetric magnetic states in iron-based superconductors
• Inter-orbital nematicity and the origin of a single electron Fermi pocket in FeSe
• Competing Electronic Phases near the Onset of Superconductivity in Hole-doped SrFe2As2
• Fast recovery of the stripe magnetic order by Mn/Fe substitution in F-doped LaFeAsO superconductors
• Spectral Evidence for Emergent Order in Ba${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$
• Local signatures of altermagnetism
• Scanning tunneling spectroscopy as a probe of multi-Q magnetic states of itinerant magnets
• Orbital loop currents in iron-based superconductors
• Antiferromagnetic chiral spin density wave and strain-induced Chern insulator in the square lattice Hubbard model with frustration
• Scaling of the Fano effect of the in-plane Fe-As phonon and the superconducting critical temperature in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Raman scattering study of tetragonal magnetic phase in Sr${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$: structural symmetry and electronic gap
• Quasiparticle scattering interference in iron pnictides: A probe of the origin of nematicity
• Ab-initio investigation of lattice distortions in response to van der Waals interactions in FeSe
• Chern insulating state with double-$Q$ ordering wave vectors at the Brillouin zone boundary
• Odd-Parity Magnetism in Fe-Based Superconductors
• Double-$Q$ and quadruple-$Q$ instabilities at low-symmetric ordering wave vectors under tetragonal symmetry
• Doping-dependent orbital magnetism in Chromium pnictides
• Quasiclassical theory of $C_4$-symmetric magnetic order in disordered multiband metals