Abstract
Low-temperature dependence of the shear viscosity components in superconductor S r 2 R u O 4 is investigated within the framework of the Boltzmann equation. We will show that this dissipative viscosity has a power-law temperature dependence as T 2 for the γ band of the Fermi surface with the isotropic gap. Lupien et al. experimentally found that the shear viscosity components of superconductor S r 2 R u O 4 change as T 1.8 at low temperatures. This relative consistency between the temperature dependence for the isotropic gap and experimental results implies that the gap node of S r 2 R u O 4 may be a horizontal line node.
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This study was financially supported by the research council of the University of Isfahan, Iran.
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Yazdani-Hamid, M., Yavari, H., Shahzamanian, M.A. et al. Low-Temperature Dependence of the Shear Viscosity in Superconductor S r 2 R u O 4 . J Supercond Nov Magn 30, 865–869 (2017). https://doi.org/10.1007/s10948-016-3875-6
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DOI: https://doi.org/10.1007/s10948-016-3875-6