Volume 54, Number 3, May 2001
|Page(s)||380 - 386|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 December 2003|
Magnetic resonance at and charge dynamics in
Institut für Theoretische Physik, Technische Universität
Graz A-8010 Graz, Austria
2 Department of Physics and Astronomy, McMaster University Hamilton, Ont. L8S 4M1, Canada
3 Department of Physics, University of California, San Diego La Jolla, CA 92093-0319, USA
Accepted: 22 February 2001
We report an Eliashberg analysis of the electron dynamics in . The magnetic resonance at 41 meV couples to charge carriers and defines the characteristic shape in energy of the scattering rate , which allows us to construct the charge-spin spectral density at temperature T. The T-dependence of the weight under the resonance peak in 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.
PACS: 74.20.Mn – Nonconventional mechanisms (spin fluctuations, polarons and bipolarons, resonating valence bond model, anyon mechanism, marginal Fermi liquid, Luttinger liquid, etc.) / 74.25.Gz – Optical properties / 74.72.-h – High-Tc compounds
© EDP Sciences, 2001
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