Theoretical study on the superfluid density of the superconducting MNCl (M=Hf, Zr) |
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| Authors: | SoonHo Choi Hirohito Aizawa |
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| Affiliation: | a Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
b Institute of Physics, Kanagawa University, Yokohama 221-8686, Japan |
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| Abstract: | We consider the possibility of spin fluctuation mediated d+id′‐wave pairing for the layered nitride superconductor MMCl. Using the superconducting gap obtained within the fluctuation exchange method for the two band model, we calculate the superfluid density as a function of temperature for several doping concentrations. Reflecting the fact that the anisotropy of the d+id′‐wave gap on the Fermi surface is enhanced with the increase of the doping concentration, the overall doping dependence of the superfluid density is in qualitative agreement with the experiment. |
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| Keywords: | D. Superconductivity |
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