Superconducting Gap Modulation in Weak Stripe States

Masanori Ichioka, Kazushige Machida

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    The superconducting gap modulation is investigated in the presence of a weak stripe structure, using the Bogoliubov-de Gennes theory on the two-dimensional Hubbard model with nearest-neighbor site pairing interaction. We calculate the local density of states and discuss the recently observed scanning tunneling spectroscopy data suggesting four-lattice periodicity on Bi2Sr2CaCu2O8+δ. We also consider the spectral weight in the reciprocal space, where the Fermi surface and the superconducting gap are modulated by the band-folding effect of the stripe structure.

    Original languageEnglish
    Pages (from-to)1836-1839
    Number of pages4
    Journaljournal of the physical society of japan
    Volume71
    Issue number8
    DOIs
    Publication statusPublished - Aug 2002

    Keywords

    • Bogoliubov-de Gennes theory
    • Local density of states
    • Spectral weight
    • Stripe state
    • Superconducting gap

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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