Superconducting Gap Modulation in Weak Stripe States
Superconductivity
2009-11-07 v1
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.
Cite
@article{arxiv.cond-mat/0205504,
title = {Superconducting Gap Modulation in Weak Stripe States},
author = {Masanori Ichioka and Kazushige Machida},
journal= {arXiv preprint arXiv:cond-mat/0205504},
year = {2009}
}
Comments
4 pages, 4 figures, to be published in J. Phys. Soc. Jpn