Superconducting Gap Modulation in Weak Stripe States

Masanori Ichioka, Kazushige Machida

Research output: Contribution to journalArticle

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 1 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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