Normal Electron Self-energy and Pairing Self-energy in Bi2Sr2CaCu2O8

  • Wentao Zhang
Chapter
Part of the Springer Theses book series (Springer Theses)

Abstract

This chapter demonstrates the direct observation of the electron-hole mixing in Bi2212 at low temperature. Normal self-energy and pairing self-energy has provided critical evidence in proving the phonon as the glue of pairing in the BCS theory of superconductivity. The extraction of density of states of pairing glue in conventional superconductors is based on high-precision tunneling experiments which have no momentum resolution. For cuprate superconductors of which the electronic structure is highly anisotropic, it demands techniques with momentum resolution to do the similar extraction. Based on high resolution ARPES and the direct observation of particle-hole mixing in MDC, by fitting the momentum distribution curves (MDCs), the complex electron self-energies and complex gap functions in superconducting state were extracted. The obtained complex gap function could be used to extract the bosonic spectral function associated with high-temperature superconductivity.

Keywords

Fermi Level Superconducting State Fermi Momentum Cuprate Superconductor Momentum Resolution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Wentao Zhang
    • 1
  1. 1.Lawrence Berkeley National LaboratoryBerkeleyUSA

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