“…The coefficient 7 of the electronic specific heat is relatively large, suggesting a large density of states at the Fermi level. The specific heat 7 is 11.0 [19] show that the form factor of LaSn^ is quite different from that of atomic La. Thus, the main contribution to the bulk magnetic susceptibility of LaSn^ comes from Sn 5d states, which agrees with the band calculation but disagrees with the analysis of the NMR experiments [20] [21] [22].…”