Collective modes and quasiparticle interference on the local density of states of cuprate superconductors

2003/07/31 by C. -T. Chen, C.-T. Chen, N. -C. Yeh +1
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.68.220505

published as Phys. Rev. B 68, 220505 (2003) · 5 figures, accepted for publication in Physical Review B, Rapid Communications. Contact author: Nai-Chang Yeh (e-mail address: [email protected])

arxiv created 2003/11/25 · openalex publication_date 2003/12/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The energy, momentum, and temperature dependence of the quasiparticle local density of states (LDOS) of a two-dimensional d_x²\ensuremath-y²-wave superconductor with random disorder is investigated using the first-order T-matrix approximation. The results suggest that collective modes such as spin-charge-density waves are relevant low-energy excitations of the cuprates that contribute to the observed LDOS modulations in recent scanning tunneling microscopy studies of Bi₂Sr₂CaCu₂O_x.

Citations

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