α2(Ω)F(Ω)inV3Si: Insight from the superconducting thermodynamic properties

Abstract

We calculate the superconducting thermodynamic properties on the basis of two model ${\alpha }^{2}F$ spectra for ${\mathrm{V}}_3$Si and compare them with recent experimental results. It is found that the spectrum obtained by scaling the measured phonon density of states in ${\mathrm{V}}_3$Si in such a way that the resulting $\lambda$ value is equal to 1 gives good agreement between the calculated and experimental values of thermodynamic quantities. On the other hand, an ${\alpha }^{2}F$ spectrum set equal to ${\alpha }^2{F}_{\mathrm{tr}}$ which was deduced from far infrared measurements ($\lambda =1.29\mathrm{}$), implies thermodynamic properties of ${\mathrm{V}}_3$Si which are not found experimentally.