Imaging Quasiparticle Interference in Bi2Sr2CaCu2O8+δ

@article{Hoffman2002ImagingQI,
  title={Imaging Quasiparticle Interference in Bi2Sr2CaCu2O8+$\delta$},
  author={Jennifer E. Hoffman and Kyle McElroy and D.-H. Lee and Kristine Lang and Hiroshi Eisaki and Shin-ichi Uchida and J. C. S{\'e}amus Davis},
  journal={Science},
  year={2002},
  volume={297},
  pages={1148 - 1151}
}
Scanning tunneling spectroscopy of the high-T c superconductor Bi2Sr2CaCu2O8+δreveals weak, incommensurate, spatial modulations in the tunneling conductance. Images of these energy-dependent modulations are Fourier analyzed to yield the dispersion of their wavevectors. Comparison of the dispersions with photoemission spectroscopy data indicates that quasiparticle interference, due to elastic scattering between characteristic regions of momentum-space, provides a consistent explanation for the… 
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References

SHOWING 1-10 OF 26 REFERENCES
Signature of superfluid density in the single-particle excitation spectrum of Bi2Sr2CaCu2O8+δ
We report that the doping and temperature dependence of photoemission spectra near the Brillouin zone boundary of Bi2Sr2CaCu2O8+δexhibit unexpected sensitivity to the superfluid density. In the
Inherent inhomogeneities in tunneling spectra ofBi2Sr2CaCu2O8−xcrystals in the superconducting state
Scanning Tunneling Spectroscopy on cleaved BSCCO(2212) single crystals reveal inhomogeneities on length-scales of $\sim$30 $\AA$. While most of the surface yields spectra consistent with a d-wave
Evidence for Quantum Critical Behavior in the Optimally Doped Cuprate Bi2Sr2CaCu2O8+δ
The photoemission line shapes of the optimally doped cuprate Bi 2 Sr 2 CaCu 2 O 8+δ were studied in the direction of a node in the superconducting order parameter by means of very high resolution
Superconducting gap anisotropy and quasiparticle interactions: A doping dependent photoemission study
Comparing photoemission measurements on Bi2212 with penetration depth data, we show that a description of the nodal excitations of the d-wave superconducting state in terms of noninteracting
A Four Unit Cell Periodic Pattern of Quasi-Particle States Surrounding Vortex Cores in Bi2Sr2CaCu2O8+δ
Scanning tunneling microscopy is used to image the additional quasi-particle states generated by quantized vortices in the high critical temperature superconductor Bi2Sr2CaCu2O8+δ. They exhibit a
Slave Boson Approach to Neutron Scattering in YBa 2 Cu 3 O 6 + y Superconductors
The evolution of the so-called `41meV resonance' in the magnetic response of YBCO cuprates is studied with slave-boson theory for the t-t'-J-model. The resonance appears as a collective spin
Microscopic electronic inhomogeneity in the high-Tc superconductor Bi2Sr2CaCu2O8+x
TLDR
The presence of an electronic inhomogeneity is reported in Bi2Sr2CaCu2O8+x, a consequence of proximity to a Mott insulator resulting in poor screening of the charge potentials associated with the oxygen ions left in the BiO plane after doping, and is indicative of the local nature of the superconducting state.
Nanometer scale mapping of the density of states in an inhomogeneous superconductor
Using high-speed scanning tunneling spectroscopy (STS), we perform a full mapping of the quasiparticle density of states (DOS) in single crystals of Bi2 − xPbxSr2CaCu208 + δ. The measurements carried
Imaging of Friedel oscillation patterns of two-dimensionally accumulated electrons at epitaxially grown InAs(111) A surfaces.
TLDR
The local density of states (LDOS) at the epitaxially grown InAs surface on a GaAs(111) A substrate were characterized using low-temperature scanning tunneling microscopy and measurement of the wavelength as a function of bias voltage showed a nonparabolic dispersion relation for the conduction band.
Relation of neutron incommensurability to electronic structure in high-temperature superconductors
The relation between the incommensurability observed in neutron scattering experiments in bilayer cuprate superconductors and the electronic structure is investigated. It is found that the observed
...
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