Renormalization of spectral line shape and dispersion below Tc in Bi2Sr2CaCu2O8+δ

A. Kaminski, M. Randeria, J. C. Campuzano, M. R. Norman, H. Fretwell, J. Mesot, T. Sato, T. Takahashi, K. Kadowaki

Research output: Contribution to journalArticlepeer-review

327 Citations (Scopus)


Angle-resolved photoemission data in the superconducting state of Bi2Sr2CaCu2O8+δ show a kink in the dispersion along the zone diagonal, which is related via a Kramers-Krönig analysis to a drop in the low energy scattering rate. As one moves towards (π, 0), this kink evolves into a spectral dip. The occurrence of these anomalies in the dispersion and line shape throughout the zone indicates the presence of a new energy scale in the superconducting state.

Original languageEnglish
Pages (from-to)1070-1073
Number of pages4
JournalPhysical Review Letters
Issue number6
Publication statusPublished - 2001 Feb 5


Dive into the research topics of 'Renormalization of spectral line shape and dispersion below Tc in Bi2Sr2CaCu2O8+δ'. Together they form a unique fingerprint.

Cite this