Exploring quasiparticles in high-Tc cuprates through photoemission, tunneling, and x-ray scattering experiments

  title={Exploring quasiparticles in high-Tc cuprates through photoemission, tunneling, and x-ray scattering experiments},
  author={Emanuele G. Dalla Torre and Yang He and David Benjamin and Eugene A. Demler},
  journal={New Journal of Physics},
One of the key challenges in the field of high-temperature superconductivity is understanding the nature of fermionic quasiparticles. Experiments consistently demonstrate the existence of a second energy scale, distinct from the d-wave superconducting gap, that persists above the transition temperature into the ‘pseudogap’ phase. One common class of models relates this energy scale to the quasiparticle gap due to a competing order, such as the incommensurate ‘checkerboard’ order observed in… 

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