Competition between the Pseudogap and Superconducting States of Y-Bi2212 Single Crystals Revealed by Ultrafast Broadband Optical Reflectivity

Claudio Giannetti, Gabriele Ferrini, Davide Bossini, G. Coslovich, F. Cilento, T. Abebaw, H. Eisaki, M. Greven, A. Damascelli, F. Parmigiani

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

32 Citazioni (Scopus)

Abstract

Ultrafast broadband transient reflectivity experiments are performed to study the interplay between the non-equilibrium dynamics of the pseudogap and the superconducting phases in Y-Bi2212. Once superconductivity is established the relaxation of the pseudogap proceeds 2 times faster than in the normal state, and the corresponding transient reflectivity variation changes sign after 0.5 ps. The results can be described by a set of coupled differential equations for the pseudogap and for the superconducting order parameter. The sign and strength of the coupling term suggest a remarkably weak competition between the two phases, allowing their coexistence.
Lingua originaleEnglish
pagine (da-a)N/A-N/A
RivistaPhysical Review Letters
Volume2013
DOI
Stato di pubblicazionePubblicato - 2013

Keywords

  • copper oxides
  • high-temperature superconductivity
  • pump probe
  • time-resolved optical spectroscopy

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