Artículo
Strong-coupling analysis of scanning tunneling spectra in Bi2Sr2Ca2Cu3O10 + y (Bi-2223)
Berthod, C.; Fasano, Yanina
; Maggio aprile, I.; Piriou, A.; Giannini, E.; Levy de Castro, G.; Fischer, O
Fecha de publicación:
29/07/2013
Editorial:
American Physical Society
Revista:
Physical Review B: Condensed Matter And Materials Physics
ISSN:
1098-0121
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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 fit using a microscopic model that takes into account the band structure, the BCS gap, and the interaction of electrons with the spin-resonance mode. 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 using the parameters resulting from our fits, and compare with recent experimental data.
Palabras clave:
Scanning Tunneling Spectroscopy
,
High-Temperature Superconductors
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Berthod, C.; Fasano, Yanina; Maggio aprile, I.; Piriou, A.; Giannini, E.; et al.; Strong-coupling analysis of scanning tunneling spectra in Bi2Sr2Ca2Cu3O10 + y (Bi-2223); American Physical Society; Physical Review B: Condensed Matter And Materials Physics; 88; 1; 29-7-2013; 14528-14543
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