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Theory of transport properties in the $$p$$-wave superconducting state of Sr$$_2$$RuO$$_4$$; A Microscopic determination of the gap structure

Nomura, Takuji

We provide a detailed quantitative analysis of transport properties in the $$p$$-wave superconducting state of Sr$$_2$$RuO$$_4$$. Specifically, we calculate ultrasound attenuation rate and electronic thermal conductivity within the mean field approximation. The momentum dependence of the gap function is determined by solving the Eliashberg equation for a three-band Hubbard model with the realistic electronic structure of Sr$$_2$$RuO$$_4$$. Consequently, we obtain the temperature dependence of the transport coefficients in agreement with the experimental results.



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Category:Physics, Multidisciplinary



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