Network topology and dispersive kinks observed by high-resolution photoemission spectroscopy in cuprate high-temperature superconductors |
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Authors: | J C Phillips |
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Institution: | Department of Physics and Astronomy , Rutgers University , Piscataway, New Jersey, 08854-8019, USA |
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Abstract: | Electron-phonon interactions appear to explain some of, but not all, the features of the dispersive kinks in recently observed by angle-resolved photoemission spectroscopy. The remaining anomalies have led to suggestions that magnon, and not phonon, interactions are involved. If one abandons the effective-medium approximation and replaces it with dopant-centred filamentary percolation, a picture emerges that is consistent not only with the photoemission experiments but also with tunnelling, infrared and neutron scattering data. |
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