Enhancement of superconductivity mediated by antiferromagnetic squeezed magnons
arXiv:1903.01470 · doi:10.1103/PhysRevB.100.100503
Abstract
We investigate theoretically magnon-mediated superconductivity in a heterostructure consisting of a normal metal and a two-sublattice antiferromagnetic insulator. The attractive electron-electron pairing interaction is caused by an interfacial exchange coupling with magnons residing in the antiferromagnet, resulting in p-wave, spin-triplet superconductivity in the normal metal. Our main finding is that one may significantly enhance the superconducting critical temperature by coupling the normal metal to only one of the two antiferromagnetic sublattices employing, for example, an uncompensated interface. Employing realistic material parameters, the critical temperature increases from vanishingly small values to values significantly larger than 1 K as the interfacial coupling becomes strongly sublattice-asymmetric. We provide a general physical picture of this enhancement mechanism based on the notion of squeezed bosonic eigenmodes.
arXiv comment15 pages, 4 figures
References in corpus (45)
- Spin Hall effect
- Antiferromagnetic spintronics
- Antiferromagnetic spintronics
- Enhanced Gilbert Damping in Thin Ferromagnetic Films
- Spin Caloritronics
- Odd Triplet Superconductivity and Related Phenomena in Superconductor-Ferromagnet Structures
- Electrical switching of an antiferromagnet
- Long distance transport of magnon spin information in a magnetic insulator at room temperature
- An optically stimulated superconducting-like phase in K3C60 far above equilibrium Tc
- Superconducting phases of f-electron compounds
- Robust isothermal electric switching of interface magnetization: A route to voltage-controlled spintronics
- Electrically controlled long-distance spin transport through an antiferromagnetic insulator
- Theory of the Spin Seebeck Effect
- Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5
- Experimental test of the spin mixing interface conductivity concept
- Purely Antiferromagnetic Magnetoelectric Random Access Memory
- Exponentially-Enhanced Light-Matter Interaction, Cooperativities, and Steady-State Entanglement Using Parametric Amplification
- Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers
- Nanoengineered magnetic-field-induced superconductivity
- Colloquium: Nonequilibrium effects in superconductors with a spin-splitting field
- Spin convertance at magnetic interfaces
- Dynamical Cooper pairing in non-equilibrium electron-phonon systems
- Enhancing cavity QED via anti-squeezing: synthetic ultra-strong coupling
- Rapid change of superconductivity and electron-phonon coupling through 19% doping in Bi2212
- The theory of parametrically amplified electron-phonon superconductivity
- Equilibrium magnetization at the boundary of a magnetoelectric antiferromagnet
- Spin Seebeck effect in antiferromagnets and compensated ferrimagnets
- Displaced and Squeezed Number States
- Super-Poissonian shot noise of squeezed-magnon mediated spin transport
- Time-Reversal-Symmetry-Breaking Superconductivity in Epitaxial Bismuth/Nickel Bilayers
- Antiferromagnetic magnons as highly squeezed Fock states underlying quantum correlations
- Gilbert damping phenomenology for two-sublattice magnets
- Magnon based logic in a multi-terminal YIG/Pt nanostructure
- Interfacial Spin and Heat Transfer between Metals and Magnetic Insulators
- Noninteger-spin magnonic excitations in untextured magnets
- Spin pumping and shot noise in ferrimagnets: bridging ferro- and antiferromagnets
- Amperean Pairing at the Surface of Topological Insulators
- Superconductivity Induced by Interfacial Coupling to Magnons
- Spin splitting induced in a superconductor by an antiferromagnetic insulator
- Superconductivity at metal-antiferromagnetic insulator interfaces
- Magnon-Mediated Indirect Exciton Condensation through Antiferromagnetic Insulators
- Magnon Exchange Mechanism of Ferromagnetic Superconductivity
- Magnon-induced superconductivity in a topological insulator coupled to ferro- and antiferromagnetic insulators
- Electrically Driven Bose-Einstein Condensation of Magnons in Antiferromagnets
- Chiral Spin Order in Kondo-Heisenberg systems
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- Topological Superconductivity Mediated by Skyrmionic Magnons
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- Magnon-mediated superconductivity on the surface of a topological insulator
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- Possible odd-frequency Amperean magnon-mediated superconductivity in topological insulator -- ferromagnetic insulator bilayer
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- Collective excitations of a Bose-Einstein condensate of hard-core bosons and their mediated interactions: from two-body bound states to mediated superfluidity
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- Cavity-Enhanced Optical Manipulation of Antiferromagnetic Magnon-Pairs
- Unified formulation of interfacial magnonic pumping from non-collinear magnets
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- Renormalization of antiferromagnetic magnons by superconducting condensate and quasiparticles
- Topological Interlayer Superconductivity in a van der Waals Heterostructure
- Spin Hall Effects in Antiferromagnets
- Magnon influence on the superconducting density of states in superconductorferromagnetic-insulator bilayers
- Strong-coupling approach to temperature dependence of competing orders of superconductivity: Possible time-reversal symmetry breaking and nontrivial topology
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- Strong photon coupling to high-frequency antiferromagnetic magnons via topological surface states
- Laser induced enhanced coupling between photons and squeezed magnons in antiferromagnets
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