Resumo

CONTRERAS E., Pedro L.. A constant self-consistent scattering lifetime in superconducting strontium ruthenate. Rev. mex. fis. [online]. 2024, vol.70, n.6.  Epub 12-Jan-2026. ISSN 0035-001X.  https://doi.org/10.31349/revmexfis.70.060501.

In this numerical work, we find a self-consistent constant scattering superconducting lifetime for two different values of the parameters, the inverse atomic strength, and the stoichiometric disorder in the triplet paired unconventional superconductor strontium ruthenate. This finding is relevant for experimentalists given that the expressions for the ultrasound attenuation and the electronic thermal conductivity depend on the superconducting scattering lifetime, and a constant lifetime fits well with non-equilibrium experimental data. Henceforth, this work helps experimentalists in their interpretation of the acquired data. Additionally, we encountered tiny imaginary parts of the self-energy that resemble the Miyake-Narikiyo tiny gap outside the unitary elastic scattering limit, and below the threshold zero gap value of 1.0 meV.

Palavras-chave : Constant superconducting lifetime; strontium ruthenate; unconventional superconductivity; ultrasound attenuation; electronic thermal conductivity; self-consistent method.

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