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 spectra with four lattice periodicity on Bi_2 Sr_2 Ca Cu_2 O_{8+delta} 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.

4 pages, 4 figures, to be published in J. Phys. Soc. Jpn

References in corpus (5)

• A Four-Unit-Cell Periodic Pattern of Quasiparticle States Surrounding Vortex Cores in Bi2Sr2CaCu2O8+d
• Imaging the granular structure of high-Tc superconductivity in underdoped Bi2Sr2CaCu2O8+x
• Doping dependence of the Fermi surface in Bi(Pb)2212
• Pinning of dynamic spin density wave fluctuations in the cuprate superconductors
• Vortex structure in chiral p-wave superconductors

Cited by in corpus (8)

• Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
• Order and quantum phase transitions in the cuprate superconductors
• Spin dynamics in the stripe phase of the cuprates
• STM/STS Study on 4a X 4a Electronic Charge Order and Inhomogeneous Pairing Gap in Superconducting Bi2Sr2CaCu2O8+d
• NMR relaxation time around a vortex in stripe superconductors
• The Energy-dependent Checkerboard Patterns in Cuprate Superconductors
• Odd parity charge density-wave scattering in cuprates
• Coulomb Interaction-induced Checkerboard Patterns in Disordered Cuprates