Isotope effect in the Hubbard model for d-waves superconductivity
Dahm T, Manske D, Fay D, Tewordt L (1996)
Journal of Low Temperature Physics 105(3-4): 639-644.
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We have solved the generalized Eliashberg equations for the 2D Hubbard model with interactions due to exchange of antiferromagnetic spin fluctuations and harmonic phonons. We calculate the supression of T-c for d-wave superconductivity, the isotope exponent alpha, and the resitivity rho with different models for the phonon interaction alpha(2)F(q,omega). The smallest T-c supression and the largest alpha values are obtained for interactions which are enhanced at q = 0. At lower temperatures the spin-fluctuation interaction is strongly reduced by the phonon interaction due to feed-back effects. We compare our results with the experimental data on high-T-c superconductors.
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Dahm T, Manske D, Fay D, Tewordt L. Isotope effect in the Hubbard model for d-waves superconductivity. Journal of Low Temperature Physics. 1996;105(3-4):639-644.
Dahm, T., Manske, D., Fay, D., & Tewordt, L. (1996). Isotope effect in the Hubbard model for d-waves superconductivity. Journal of Low Temperature Physics, 105(3-4), 639-644. doi:10.1007/BF00768456
Dahm, T., Manske, D., Fay, D., and Tewordt, L. (1996). Isotope effect in the Hubbard model for d-waves superconductivity. Journal of Low Temperature Physics 105, 639-644.
Dahm, T., et al., 1996. Isotope effect in the Hubbard model for d-waves superconductivity. Journal of Low Temperature Physics, 105(3-4), p 639-644.
T. Dahm, et al., “Isotope effect in the Hubbard model for d-waves superconductivity”, Journal of Low Temperature Physics, vol. 105, 1996, pp. 639-644.
Dahm, T., Manske, D., Fay, D., Tewordt, L.: Isotope effect in the Hubbard model for d-waves superconductivity. Journal of Low Temperature Physics. 105, 639-644 (1996).
Dahm, Thomas, Manske, D, Fay, D, and Tewordt, L. “Isotope effect in the Hubbard model for d-waves superconductivity”. Journal of Low Temperature Physics 105.3-4 (1996): 639-644.
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