C-axis electronic Raman scattering in Bi_2Sr_2CaCu_2O_{8+\delta}

H. L. Liu; G. Blumberg; M. V. Klein; P. Guptasarma; D. G. Hinks

doi:10.1103/PhysRevLett.82.3524

C-axis electronic Raman scattering in Bi_2Sr_2CaCu_2O_{8+\delta}

Superconductivity 2009-10-31 v1

Authors: H. L. Liu , G. Blumberg , M. V. Klein , P. Guptasarma , D. G. Hinks

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Abstract

We report a c-axis-polarized electronic Raman scattering study of Bi_2Sr_2CaCu_2O_{8+\delta} single crystals. In the normal state, a resonant electronic continuum extends to 1.5 eV and gains significant intensity as the incoming photon energy increases. In the superconducting state, a coherence 2\Delta peak appears around 50 meV, with a suppression of the scattering intensity at frequencies below the peak position. The peak energy, which is higher than that seen with in-plane polarizations, signifies distinctly different dynamics of quasiparticle excitations created with out-of-plane polarization.

Keywords

c-axis polarized Raman scattering Bi2Sr2CaCu2O8+delta electronic continuum coherence peak quasiparticle excitations superconducting state

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@article{arxiv.cond-mat/9808322,
  title  = {C-axis electronic Raman scattering in Bi_2Sr_2CaCu_2O_{8+\delta}},
  author = {H. L. Liu and G. Blumberg and M. V. Klein and P. Guptasarma and D. G. Hinks},
  journal= {arXiv preprint arXiv:cond-mat/9808322},
  year   = {2009}
}

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12 pages, REVTEX, 3 postscript figures

C-axis electronic Raman scattering in Bi_2Sr_2CaCu_2O_{8+\delta}

Abstract

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