2003/10/14 by Jianxin Li, Jian-Xin Li, Li, Jian-Xin +2
Chemistry · Physics and Astronomy · #Advanced Condensed Matter Physics #FOS: Physical sciences #Inorganic Fluorides and Related Compounds #Physics of Superconductivity and Magnetism #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0310308
4 pages, 4 figures
arxiv created 2003/10/14 · openalex publication_date 2003/10/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Motivated by the recent discovery of superconductivity in layered NaxCoO2⋅ yH2O compound, we investigate theoretically the spin dynamics in the superconducting state with three possible px+ipy-, d+id'-, and f-wave pairing symmetries in two-dimensional triangular lattices. We find that a spin resonance peak, which is elaborated to have a close relevance to the relative phase of the gap function and the geometry of the Fermi surface, appears in both in-plane and out-of-plane components of the spin susceptibility χ for the spin-singlet d+id'-wave pairing, while only in the out-of-plane(in-plane) component of χ for the spin-triplet px+ipy-wave (f-wave) pairing. Because the pairing symmetry in this compound is still hotly debated at present, this distinct feature may be used to probe or determine it unambiguously with future neutron scattering experiments.