Superconducting Gap Modulation in Weak Stripe States

Masanori Ichioka; Kazushige Machida

doi:10.1143/JPSJ.71.1836

Superconducting Gap Modulation in Weak Stripe States

Masanori Ichioka, Kazushige Machida

Research output: Contribution to journal › Article › peer-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 Bi₂Sr₂CaCu₂O_8+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 language	English
Pages (from-to)	1836-1839
Number of pages	4
Journal	journal of the physical society of japan
Volume	71
Issue number	8
DOIs	https://doi.org/10.1143/JPSJ.71.1836
Publication status	Published - 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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10.1143/JPSJ.71.1836

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title = "Superconducting Gap Modulation in Weak Stripe States",

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.",

keywords = "Bogoliubov-de Gennes theory, Local density of states, Spectral weight, Stripe state, Superconducting gap",

author = "Masanori Ichioka and Kazushige Machida",

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language = "English",

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AU - Machida, Kazushige

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AB - 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.

KW - Bogoliubov-de Gennes theory

KW - Local density of states

KW - Spectral weight

KW - Stripe state

KW - Superconducting gap

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Superconducting Gap Modulation in Weak Stripe States

Abstract

Keywords

ASJC Scopus subject areas

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