Periodic coherence-peak height modulations in superconductingBi2Sr2CaCu2O8+δ

2004/04/20 by Alan Fang, A. Fang, Craig Howald +5
Engineering · Physics and Astronomy · #Magnetic properties of thin films #Magneto-Optical Properties and Applications #Physics of Superconductivity and Magnetism #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.70.214514

8 pages, 5 figures with 15 total eps files

arxiv created 2004/04/20 · openalex publication_date 2004/12/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

In this paper we analyze, using scanning tunneling spectroscopy (STS), the local density of electronic states (LDOS) in nearly optimally doped Bi₂Sr₂CaCu₂O_8+\ensuremathδ in zero magnetic field. We see both dispersive and nondispersive spatial LDOS modulations as a function of energy in our samples. Moreover, a spatial map of the superconducting coherence peak heights shows the same structure as the low-energy LDOS. This suggests that these nondispersive LDOS modulations originate from an underlying charge-density modulation, which interacts with superconductivity.

Citations

• STM Studies of the Electronic Structure of Vortex Cores inBi2Sr2CaCu2O8+δ
• Inherent inhomogeneities in tunneling spectra ofBi2Sr2CaCu2O8−xcrystals in the superconducting state
• Translational symmetry breaking in the superconducting state of the cuprates: Analysis of the quasiparticle density of states
• Superconducting charge-ordered states in cuprates
• Imaging Quasiparticle Interference in Bi 2 Sr 2 CaCu 2 O 8+δ
• Plaquette boson-fermion model of cuprates
• Pinning of dynamic spin-density-wave fluctuations in cuprate superconductors
• Soliton Lattice Modulation of Incommensurate Spin Density Wave in Two Dimensional Hubbard Model -A Mean Field Study-