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Magnetic resonance at 41 meV and charge dynamics in YBa_2Cu_3O_6.95 | | E. Schachinger
; J.P. Carbotte
; D.N. Basov
; | | Date: |
2 Mar 2001 | | Journal: | Europhys. Lett. Vol. 54, pp. 380 (2001) | | Subject: | Superconductivity | cond-mat.supr-con | | 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 au^{-1}(T,omega) which allows us to construct the charge-spin spectral density I^2chi(omega,T) at temperature T. The T dependence of the weight under the resonance peak in I^2chi(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. | | Source: | arXiv, cond-mat/0103049 | | Services: | Forum | Review | PDF | Favorites | |
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