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Electron — phonon coupling in underdoped high-temperature superconductors


Cross-Correlated Materials Research Group (CMRG), ASI, RIKEN, Wako, Saitama , Japan

Results indicating the important role of the electron — phonon coupling in high-temperature superconductivity compounds are presented, with emphasis on its implications for angle-resolved photoemission and optical conductivity. The dimensionless phonon coupling constant λ is determined by comparing the experimental and theoretical results. Although undoped materials are in the strong-coupling (λ ~ 1) regime, hole doping decreases λ, bringing compounds to the intermediate-coupling regime at optimum hole concentrations.

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Fulltext is also available at DOI: 10.3367/UFNe.0179.200912b.1259
PACS: 71.38.−k, 74.20.−z, 74.72.−h (all)
DOI: 10.3367/UFNe.0179.200912b.1259
URL: https://ufn.ru/en/articles/2009/12/b/
000285142600001
2-s2.0-77949707223
2009PhyU...52.1193M
Citation: Mishchenko A S "Electron — phonon coupling in underdoped high-temperature superconductors" Phys. Usp. 52 1193–1212 (2009)
BibTex BibNote ® (generic)BibNote ® (RIS)MedlineRefWorks
%0 Journal Article
%T Electron - phonon coupling in underdoped high-temperature superconductors
%A A. S. Mishchenko
%I Physics-Uspekhi
%D 2009
%J Phys. Usp.
%V 52
%N 12
%P 1193-1212
%U https://ufn.ru/en/articles/2009/12/b/
%U https://doi.org/10.3367/UFNe.0179.200912b.1259

Оригинал: Мищенко А С «Электрон-фононное взаимодействие в недодопированных высокотемпературных сверхпроводниках» УФН 179 1259–1280 (2009); DOI: 10.3367/UFNr.0179.200912b.1259

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