Nematic Bogoliubov Fermi surfaces from magnetic toroidal order in FeSe${}_{1-x}$S${}_x$

Abstract

Recently it has been argued that the superconducting state of FeSe${}_{1-x}$S${}_x$ exhibits Bogoliubov Fermi surfaces for $x>0.17$. These Bogoliubov Fermi surfaces appear together with broken time-reversal symmetry and surprisingly demonstrate nematic behavior in a structurally tetragonal phase. Through a symmetry-based analysis of Bogoliubov Fermi surfaces that can arise from broken time-reversal symmetry, we argue that the likely origin of time-reversal symmetry breaking is due to magnetic toroidal order. We show that this magnetic toroidal order naturally appears as a consequence of either static Néel antiferromagnetic order or due to the formation of a spontaneous pair density wave superconducting order. Finally, we reveal that independent of the presence of Bogoliubov Fermi surfaces, supercurrents will induce Néel magnetic order in many Fe-based superconductors.

References in corpus (35)

• Magnetism and its microscopic origin in iron-based high-temperature superconductors
• The Structural Phase Transition in FeSe (Fe1+dSe)
• Substitution Effects on FeSe Superconductor
• Supercurrent diode effect and finite momentum superconductivity
• Crystal structure of the new FeSe1-x superconductor
• A phenomenological theory of superconductor diodes
• Towards a microscopic theory of toroidal moments in bulk periodic crystals
• Bogoliubov Fermi surfaces in superconductors with broken time-reversal symmetry
• Toroidal order in metals without local inversion symmetry
• On the Remarkable Superconductivity of FeSe and its Close Cousins
• Exotic Superconducting States in FeSe-based Materials
• Giant superconducting fluctuations in the compensated semimetal FeSe at the BCS-BEC crossover
• Discovery of a pair density wave state in a monolayer high-Tc iron-based superconductor
• Superconductivity and phase instability of NH3-free Na-intercalated FeSe1-zSz
• Pressure-Induced Effects on the Structure of the FeSe Superconductor
• Inflated nodes and surface states in superconducting half-Heusler compounds
• Nonlinear spin Hall effect in $\mathcal{P}\mathcal{T}$-symmetric collinear magnets
• Resilient nodeless $d$-wave superconductivity in monolayer FeSe
• Emergent loop current order from pair density wave superconductivity
• Analysis of model parameter dependences on the second-order nonlinear conductivity in $\mathcal{P}\mathcal{T}$-symmetric collinear antiferromagnetic metals with magnetic toroidal moment on zigzag chains
• Electronic nematic states tuned by isoelectronic substitution in bulk FeSe1-xSx
• Pure nematic quantum critical point accompanied by a superconducting dome
• Anapole superconductivity from $\mathcal{P}\mathcal{T}$-symmetric mixed-parity interband pairing
• Pair Density Waves from Local Band Geometry
• Thermodynamics of transition to BCS-BEC crossover superconductivity in FeSe${}_{1-x}$S${}_x$
• Quantum geometric effect on Fulde-Ferrell-Larkin-Ovchinnikov superconductivity
• Two superconducting states with broken time-reversal symmetry in FeSe1-xSx
• Microscopic mechanism for fluctuating pair density wave
• Revealing the Origin of Time-reversal Symmetry Breaking in Fe-chalcogenide Superconductor FeTe1-xSex
• Electronic multipoles and multiplet pairs induced from Pomeranchuk and Cooper instabilities of Bogoliubov Fermi surfaces
• Pair density wave facilitated by Bloch quantum geometry in nearly flat band multiorbital superconductors
• Odd-frequency pairing inherent in Bogoliubov Fermi liquid
• Direct probing of a large spin-orbit coupling in the FeSe superconducting monolayer on STO: Evidence for nontrivial topological states
• Kramers' degenerate magnetism and superconductivity
• Microscopic origin of ultranodal superconducting states in spin-1/2 systems

Cited by in corpus (4)

• Identifying Bogoliubov Fermi surfaces via thermoelectric response in a $d$-wave superconductor heterostructure
• Spin fluctuations in the ultranodal superconducting state of Fe(Se,S)
• Odd-frequency pairing of Bogoliubov quasiparticles in superconductor junction
• Temperature evolution of the Fermi surface of the FeSe monolayer on SrTiO${}_3$