2001/03/02 by E. Schachinger, J. P. Carbotte, J. P. Ćarbotte +1
Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #cond-mat.supr-con
paper · pdf · doi:10.1209/epl/i2001-00253-5
published as Europhys. Lett. Vol. 54, pp. 380 (2001) · 7 Pages, 3 Figures, accepted for publication in Europhysics Letters
arxiv created 2001/03/02 · openalex publication_date 2001/05/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
We report an Eliashberg analysis of the electron dynamics in YBa 2 Cu 3 O 6.95 . The magnetic resonance at 41 meV couples to charge carriers and defines the characteristic shape in energy of the scattering rate τ −1 ( T ,ω), which allows us to construct the charge-spin spectral density I 2 χ(ω, T ) at temperature T . The T -dependence of the weight under the resonance peak in I 2 χ(ω) agrees with experiment as does that of the London penetration depth and of the microwave conductivity. Also, the T = 0 condensation energy, the fractional oscillator strength in the condensate, and the ratio of gap-to-critical temperature agree well with the data.