Magnetic resonance at 41 meV and charge dynamics in YBa_2Cu_3O_6.95
Preprint
- 2 March 2001
Abstract
We report an Eliashberg analysis of the electron dynamics in YBa_2Cu_3O_6.95. The magnetic resonance at 41 meV couples to charge carriers and defines the characteristic shape in energy of the scattering rate \tau^{-1}(T,\omega) which allows us to construct the charge-spin spectral density I^2\chi(\omega,T) at temperature T. The T dependence of the weight under the resonance peak in I^2\chi(\omega,T) agrees with experiment as does that of the London penetration depth and of the microwave conductivity. Als, at T=0 condensation energy, the fractional oscillator strength in the condensate, and the ratio of gap to critical temperature agree well with the data.Keywords
All Related Versions
- Version 1, 2001-03-02, ArXiv
- Published version: Europhysics Letters, 54 (3), 380.
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