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Coupling of a high-energy excitation to superconducting quasiparticles in a cuprate from coherent charge fluctuation spectroscopy

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Publication date 2013
Author B. Mansart, J. Lorenzana, A. Mahn, A. Odeh, M. Scarongella, M. Chergui, F. Carbone,
Project The dynamics of chemical bonds by ultrafast electron diffraction
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Original article (peer-reviewed)

Journal PNAS
Volume (Issue) 110
Page(s) 4539
Title of proceedings PNAS

Open Access

URL http://www.pnas.org/content/110/12/4539.short
Type of Open Access Website

Abstract

In this article, we report the coherent oscillations of the superconducting condensate in a high temperature superconductor. We observe their resonance to the charge-transfer energy scale, indicating a substantial non-retarded contribution to the pairing mechanism.
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