Odd-Parity Spin-Triplet Superconductivity in Centrosymmetric Antiferromagnetic Metals

Abstract

We propose a route to achieve odd-parity spin-triplet superconductivity in metallic collinear antiferromagnets with inversion symmetry. Owing to the existence of hidden antiunitary symmetry, which we call the effective time-reversal symmetry (eTRS), the Fermi surfaces of ordinary antiferromagnetic metals are generally spin-degenerate, and spin-singlet pairing is favored. However, by introducing a local inversion symmetry breaking perturbation that also breaks the eTRS, we can lift the degeneracy to obtain spin-polarized Fermi surfaces. In the weak-coupling limit, the spin-polarized Fermi surfaces constrain the electrons to form spin-triplet Cooper pairs with odd-parity. Interestingly, all the odd-parity superconducting ground states we obtained host nontrivial band topologies manifested as chiral topological superconductors, second-order topological superconductors, and nodal superconductors. We propose that layered double-perovskites with collinear antiferromagnetism, sandwiched by conventional superconductors, are promising candidate systems where our theoretical ideas can be applied to.

References in corpus (53)

• Classification of topological insulators and superconductors in three spatial dimensions
• Classification of topological quantum matter with symmetries
• Novel Symmetry Classes in Mesoscopic Normal-Superconducting Hybrid Structures
• Periodic table for topological insulators and superconductors
• Topological superconductors: a review
• Odd-Parity Topological Superconductors: Theory and Application to Cu${}_x$Bi${}_2$Se${}_3$
• Spontaneously polarized half-gapped superconductivity
• Spin-polarized Correlated Insulator and Superconductor in Twisted Double Bilayer Graphene
• Superconductivity on the border of weak itinerant ferromagnetism in UCoGe
• Higher-order topological insulators and superconductors protected by inversion symmetry
• Structure determination and coexistence of superconductivity and antiferromagnetic order in (Li0.8Fe0.2)OHFeSe
• Scattering and Pairing in Cuprate Superconductors
• Competition and coexistence of antiferromagnetism and superconductivity in underdoped Ba(Fe0.953Co0.047)2As2
• Topological odd-parity superconductors
• A General Theorem Relating the Bulk Topological Number to Edge States in Two-dimensional Insulators
• Theory of Superconductivity in Strongly Correlated Electron Systems
• Spin Density Functional Based Search for Half-Metallic Antiferromagnets
• Topological superconductivity in bilayer Rashba system
• Theory of correlated insulating behaviour and spin-triplet superconductivity in twisted double bilayer graphene
• Coexistence of magnetism and superconductivity in CeRh1-xIrxIn5
• Coexistence of antiferromagnetism and superconductivity in CeRhIn5 under high pressure and magnetic field
• Odd-parity triplet superconductivity in multi-orbital materials with strong spin-orbit coupling: applications to doped Sr2IrO4
• Coexistence of ferromagnetic fluctuations and superconductivity in the actinide superconductor UTe2
• Edge modes in band topological insulators
• Spin-triplet superconductivity due to antiferromagnetic spin-fluctuation in Sr_2RuO_4
• Half-metallic antiferromagnets in double perovskites: LaAVRuO${}_6$ (A=Ca, Sr, and Ba)
• Superconductivity and local non-centrosymmetricity in crystal lattices
• Fragile Topology Protected by Inversion Symmetry: Diagnosis, Bulk-Boundary Correspondence, and Wilson Loop
• Compensated magnetism by design in double perovskite oxides
• Possible pairing symmetries in SrPtAs with a local lack of inversion center
• Higher-Order Topological Superconductivity of Spin-Polarized Fermions
• Bulk-edge correspondence for Chern topological phases: A viewpoint from a generalized index theorem
• Atomic limit and inversion-symmetry indicators for topological superconductors
• Emergent odd-parity multipoles and magnetoelectric effects on a diamond structure: implication to 5$d$ transition metal oxides $A$OsO${}_4$ ($A=$ K, Rb, and Cs)
• Emergent Nodal Excitations due to the Coexistence of Superconductivity and Antiferromagnetism: Cases with and without Inversion Symmetry
• Unconventional superconducting gap structure protected by space group symmetry
• Evidence of Kinetic Energy Driven Antiferromagnetism in Double Perovskites : A First-principles Study
• Topological Ultranodal pair states in iron-based superconductors
• Multipole superconductivity in nonsymmorphic Sr${}_2$IrO${}_4$
• The gap equations for spin singlet and triplet ferromagnetic superconductors
• Ferromagnetism and superconductivity in twisted double bilayer graphene
• Kramers degeneracy in a magnetic field and Zeeman spin-orbit coupling in antiferromagnetic conductors
• Kramers degeneracy in a magnetic field and Zeeman spin-orbit coupling in antiferromagnets
• Realization of La2MnVO6: Search for half-metallic antiferromagnetism?
• Magnetism in Sr${}_2$CrMoO${}_6$: A combined abinitio and model study
• The superconducting ferromagnet UCoGe
• Odd-parity multipole fluctuation and unconventional superconductivity in locally noncentrosymmetric crystal
• On the coexistence of antiferromagnetism and d + i d superconducting correlations in the graphene bilayer
• Coexistence of itinerant ferromagnetism and a non-unitary superconducting state with line nodes: possible application to UGe${}_2$
• Topological properties of ferromagnetic superconductors
• Induced spin-triplet pairing in the coexistence state of antiferromagnetism and singlet superconductivity: collective modes and microscopic properties
• Spin-triplet paired phases inside ferromagnet induced by Hund's rule coupling and electronic correlations: Application to ${\mathrm{UGe}}_2$
• Coexistence of antiferromagnetism and topological superconductivity on the honeycomb lattice Hubbard model

Cited by in corpus (3)

• Fulde-Ferrell-Larkin-Ovchinnikov state induced by antiferromagnetic order in $\kappa$-type organic conductors
• Unconventional p-wave and finite-momentum superconductivity induced by altermagnetism through the formation of Bogoliubov Fermi surface
• Superconducting States and Intertwined Orders in Metallic Altermagnets