A critical assessment of the pairing symmetry in NaxCoO2.yH2O

Abstract

We examine each of the symmetry-allowed pairing states of NaxCoO2.yH2O and compare their properties to what is experimentally and theoretically established about the compound. In this way, we can eliminate the vast majority of states that are technically allowed and narrow the field to two, both of f-wave type states. We discuss the expected features of these states and suggest experiments that can distinguish between them. We also discuss odd-frequency gap pairing and how it relates to available experimental evidence.

References in corpus (22)

• Unconventional Superconductivity and Electron Correlations in Cobalt Oxyhydrate Na${}_{0.35}$CoO${}_2$$\cdot y$H${}_2$O
• Thermodynamic and Transport Measurements on Superconducting Na_xCoO_2 + yH_2O Single Crystals Prepared by Electrochemical De-intercalation
• Bulk antiferromagnetism in $\mathbf{N}{\mathbf{a}}_{0.82}\mathbf{Co}{\mathbf{O}}_2$ single crystals
• Three-Dimensional Spin Fluctuations in Na0.75CoO2
• Unconventional Superconductivity and Nearly Ferromagnetic Spin Fluctuations in Na${}_x$CoO${}_2$$\cdot y$H${}_2$O
• Observation of Bulk Superconductivity in NaxCoO2.yH2O and NaxCoO2.yD2O Powder and Single Crystals
• Possible effects of charge frustration in Na${}_x$CoO${}_2$: bandwidth suppression, charge orders and resurrected RVB superconductivity
• Chemical Instability of the Cobalt Oxyhydrate Superconductor under Ambient Conditions
• Possible spin-triplet $f$-wave pairing due to disconnected Fermi surfaces in Na${}_x$CoO${}_2\cdot y$H${}_2$O
• The crystal growth and characterization of NaxCoO2 and NaxCoO2yH2O
• 59Co NMR study of the Co states in superconducting and anhydrous cobaltates
• Nesting, spin-fluctuations, and odd-gap superconductivity in NaxCoO2 yH2O
• 59Co-NMR Knight Shift of the Superconducting NaxCoO2.yH2O
• Multi-orbital analysis on the Superconductivity in Na_{x}CoO_{2} \cdot y H_{2}O
• Evidence of nodal superconductivity in Na_0.35CoO2-1.3H_2O: a specific heat study
• Possible unconventional superconductivity in Na${}_x$CoO${}_2$yH${}_2$O probed by $\mu$SR
• 59Co-NMR Knight Shift of Aligned Crystals and Polycrystalline Samples of Superconducting Na0.3CoO2.1.3H2O
• Variational Monte Carlo Studies of Pairing Symmetry for the t-J Model on a Triangular Lattice
• Muon Spin Relaxation Measurements in Na_xCoO_2*yH_2O
• Impurity Effects on the Superconducting Transition Temperature of NazCoO2.yH2O
• Specific heat study of the Na(0.3)CoO(2).1.3H(2)O superconductor: influence of the complex chemistry
• Superconductivity in Na${}_x$CoO${}_2$$\cdot$yH${}_2$O : Is Spin-Charge Separation Protecting a d${}_1$+id${}_2$ State ?

Cited by in corpus (31)

• Nodal Structure of Unconventional Superconductors Probed by the Angle Resolved Thermal Transport Measurements
• Tunneling conductance in $s$- and d-wave superconductor-graphene junctions: Extended Blonder-Tinkham-Klapwijk formalism
• Dirac-fermions and conductance-oscillations in (s,d)-wave superconductor/normal graphene junctions
• Anisotropic chiral d+id superconductivity in NaxCoO2 yH2O
• Superconductivity with extremely large upper critical fields in Nb2Pd0.81S5
• Complete d-Band Dispersion and the Mobile Fermion Scale in NaxCoO2
• Destruction of the small Fermi surfaces in Na${}_x$CoO${}_2$ by Na disorder
• Elliptical hole pockets in the Fermi surfaces of unhydrated and hydrated sodium cobalt oxides
• Shubnikov de Haas effect in the metallic state of Na${}_{0.3}$CoO${}_2$
• Efficient fluctuation exchange approach to low-temperature spin fluctuations and superconductivity: from the Hubbard model to Na${}_x$CoO${}_2\cdot y$H${}_2$O
• Spin gaps and magnetic structure of NaxCoO2
• Fractional vortex lattice structures in spin triplet superconductors
• Superconductivity in epitaxial thin films of NaxCoO2 y D2O
• Unconventional superconducting pairing symmetry induced by phonons
• Enhanced Seebeck coefficient by a filling-induced Lifshitz transition in KxRhO2
• Multiband superconductivity in Ta${}_4$Pd${}_3$Te${}_{16}$ with anisotropic gap structure
• A phenomenological model of the superconducting state of the Bechgaard salts
• Multiple odd-parity superconducting phases in bilayer transition metal dichalcogenides
• Unconventional Superconductivity arising from Multipolar Kondo Interactions
• Electron-phonon interaction dressed by electronic correlations near charge ordering as the origin for superconductivity in cobaltates
• Systematic Low-Energy Effective Field Theory for Magnons and Holes in an Antiferromagnet on the Honeycomb Lattice
• Dynamical magnetic susceptibility in the lamellar cobaltate superconductor Na_xCoO_2$\cdot y$H_2O
• Influence of electron-phonon coupling strength on signatures of even and odd-frequency superconductivity
• Pairing mechanism of unconventional superconductivity in doped Kane-Mele model
• Spin-triplet $f$-wave symmetry in superconducting monolayer $Mo{S}_2$
• Evidence the ferromagnetic order on CoSb layer of LaCoSb${}_2$
• Identifying the pairing symmetry in sodium cobalt oxide by Andreev edge states
• Interplay between magnetism and sodium vacancy ordering in NaxCoO2
• Holes Localized on a Skyrmion in a Doped Antiferromagnet on the Honeycomb Lattice: Symmetry Analysis
• Upper critical field of aligned Na_{x}(H_{3}O)_{z}CoO_{2}\cdot yH_{2}O superconductor by magnetization measurement
• Thermodynamic properties in triangular-lattice superconductors