Version 1
: Received: 5 November 2024 / Approved: 6 November 2024 / Online: 6 November 2024 (09:25:36 CET)
How to cite:
Benedek, G.; Manson, J. R.; Miret-Artés, S.; Schmicker, D.; Toennies, J. P. Electron-Phonon Interaction in Non-Stoichiometric Bi2Sr2CaCu2O8+d Superconductor from the Diffuse Elastic Helium Atom Scattering. Preprints2024, 2024110380. https://doi.org/10.20944/preprints202411.0380.v1
Benedek, G.; Manson, J. R.; Miret-Artés, S.; Schmicker, D.; Toennies, J. P. Electron-Phonon Interaction in Non-Stoichiometric Bi2Sr2CaCu2O8+d Superconductor from the Diffuse Elastic Helium Atom Scattering. Preprints 2024, 2024110380. https://doi.org/10.20944/preprints202411.0380.v1
Benedek, G.; Manson, J. R.; Miret-Artés, S.; Schmicker, D.; Toennies, J. P. Electron-Phonon Interaction in Non-Stoichiometric Bi2Sr2CaCu2O8+d Superconductor from the Diffuse Elastic Helium Atom Scattering. Preprints2024, 2024110380. https://doi.org/10.20944/preprints202411.0380.v1
APA Style
Benedek, G., Manson, J. R., Miret-Artés, S., Schmicker, D., & Toennies, J. P. (2024). Electron-Phonon Interaction in Non-Stoichiometric Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>8+</sub><sub>d </sub>Superconductor from the Diffuse Elastic Helium Atom Scattering. Preprints. https://doi.org/10.20944/preprints202411.0380.v1
Chicago/Turabian Style
Benedek, G., D. Schmicker and J. P. Toennies. 2024 "Electron-Phonon Interaction in Non-Stoichiometric Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>8+</sub><sub>d </sub>Superconductor from the Diffuse Elastic Helium Atom Scattering" Preprints. https://doi.org/10.20944/preprints202411.0380.v1
Abstract
Previously helium atom scattering (HAS) has been shown to probe the electron-phonon interac-tion at conducting crystal surfaces via the temperature dependence of the specular peak intensity. This method is now extended to non-stoichiometric superconductors. The electron-phonon in-teraction, as expressed by the mass-enhancement factor λ is derived from the temperature de-pendence of the diffuse elastic scattering intensity, which specifically depends on the non-stoichiometric component responsible for superconductivity. The measured value of the mass-enhancement factor for Bi2Sr2CaCu2O8+ξ at the optimal doping ξ = 0.16 is λ=0.55±0.08 in good agreement with values of λ recently estimated with other methods. This confirms the relevant role of electron-phonon interaction also in high-temperature non-stoichiometric cuprate superconductors.
Copyright:
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