Quasiparticle Scattering Interference in High Temperature Superconductors

Details Quasiparticle Scattering Interference in High Temperature Superconductors Quasiparticle Scattering Interference in High Temperature Superconductors

2002-05-07

arxiv.org/abs/cond-mat/0205118v3

Phys. Rev. B 67, 020511 (2003)

Physics

Condensed Matter

Superconductivity

RevTex4 twocolumn, 4 pages, 3 figures. Figs.2-3 virtually embedded (bacause of too big size) while jpg files available in the

Scientific paper

10.1103/PhysRevB.67.020511

We propose that the energy-dependent spatial modulation of the local density of states seen by Hoffman, et al [hoff2] is due to the scattering interference of quasiparticles. In this paper we present the general theoretical basis for such an interpretation and lay out the underlying assumptions. As an example, we perform exact T-matrix calculation for the scattering due to a single impurity. The results of this calculation is used to check the assumptions, and demonstrate that quasiparticle scattering interference can indeed produce patterns similar to those observed in Ref. [hoff2].

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