Dispersion anomalies in bilayer cuprates and the odd symmetry of the magnetic resonance |
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Authors: | Eschrig M Norman M R |
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Institution: | Institut für Theoretische Festk?rperphysik, Universit?t Karlsruhe, 76128 Karlsruhe, Germany. |
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Abstract: | We demonstrate that recent angle resolved photoemission data in bilayer cuprate superconductors imply that scattering of electrons between bonding and antibonding bands is strong compared to scattering within these bands. As a consequence, the resulting data can be reproduced only by a model which assumes that the electrons are interacting with a bosonic mode that is odd with respect to the layer indices. This odd symmetry is a unique property of the magnetic resonance observed by inelastic neutron scattering. |
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