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Vortical patterns in bulk superconducting systems with mixed pairing orders

Author

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  • Rui-Feng Chai

    (Shanghai University)

  • Guo-Qiao Zha

    (Shanghai University)

Abstract

Based on a model Hamiltonian including the on-site repulsive interaction among the electrons, we investigate the spatial configurations of mixed spin-triplet (dominant p-wave) and spin-singlet (coexisted s-wave and d-wave) pairing symmetries in bulk superconducting systems by numerically solving the Bogoliubov–de Gennes equations. The influences of the Zeeman field and the next-nearest-neighbor hopping on the order-parameter modulations are mainly discussed. Besides the quantized vortex states with point-like cores, the unclosed vortex chains and enclosed skyrmionic modes can remain stable in the present bulk sample. Furthermore, nonuniform patterns of the vortex lattice and the elliptical-like vortices can be obtained at appropriate applied flux. The corresponding zero-energy local density of states as well as the relative phase differences useful to display the skyrmionic texture are provided Graphic abstract

Suggested Citation

  • Rui-Feng Chai & Guo-Qiao Zha, 2021. "Vortical patterns in bulk superconducting systems with mixed pairing orders," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 94(5), pages 1-6, May.
    • Handle: RePEc:spr:eurphb:v:94:y:2021:i:5:d:10.1140_epjb_s10051-021-00104-z
    DOI: 10.1140/epjb/s10051-021-00104-z
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