Penetration depth ofV3Si

The London-limit penetration depth, ${\lambda }_L$(T), has now been calculated as a function of temperature, T, for ${\mathrm{V}}_3$Si using two recent tunneling-derived spectra of the electron-phonon interaction. Significantly different predictions for ${\lambda }_L$(T)/${\lambda }_L$(0) resulted from the two spectra. Comparison with recent experimental data revealed good agreement in one case, but not in the other.