Abstract
We argue that a Scalapino-Schrieffer-Wilkins analysis of the elementary excitations is possible in high-Tc cuprates. We demonstrate this by considering the resonance peak in inelastic neutron scattering (INS) experiments and the kink in angle-resolved photoemission (ARPES) data. Both properties contain characteristic features of the superconducting gap function Δ(k, ω) that reflect the pairing interaction. We can qualitatively explain the experiments by using a generalized Eliashberg theory for the one-band Hubbard model based on spin-fluctuationmediated Cooper-pairing in which Δ(k, ω) is calculated self-consistently. This gives strong evidence for Cooper-pairing due to spin excitations in the high-Tc cuprates.
Keywords
- high-Tc superconductivity
- spin-fluctuation mechanism
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Manske, D., Eremin, I., Bennemann, K. (2005). Theory for Key Experiments in Cuprate Superconductors. In: Ashkenazi, J., et al. New Challenges in Superconductivity: Experimental Advances and Emerging Theories. NATO Science Series II: Mathematics, Physics and Chemistry, vol 183. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3085-1_27
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DOI: https://doi.org/10.1007/1-4020-3085-1_27
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