Scientific article
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Strong-coupling analysis of scanning tunneling spectra in Bi2Sr2Ca2Cu3O10+δ

Publication date2013
Abstract

We study a series of spectra measured in the superconducting state of optimally-doped Bi-2223 by scanning tunneling spectroscopy. Each spectrum, as well as the average of spectra presenting the same gap, is fitted using a strong-coupling model taking into account the band structure, the BCS gap, and the interaction of electrons with the spin resonance. After describing our measurements and the main characteristics of the strong-coupling model, we report the whole set of parameters determined from the fits, and we discuss trends as a function of the gap magnitude. We also simulate angle-resolved photoemission spectra, and compare with recent experimental results.

Citation (ISO format)
BERTHOD, Christophe et al. Strong-coupling analysis of scanning tunneling spectra in Bi2Sr2Ca2Cu3O10+δ. In: Physical review. B, Condensed matter and materials physics, 2013, vol. 88, n° 014528. doi: 10.1103/PhysRevB.88.014528
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Article (Published version)
accessLevelPublic
Identifiers
Journal ISSN1098-0121
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Creation01/08/2013 14:47:00
First validation01/08/2013 14:47:00
Update time14/03/2023 20:21:22
Status update14/03/2023 20:21:22
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