Figure 22
Influence of the valence electron concentration on the lattice parameters of R2TSi3 compounds, for a constant R element and at least five different T elements. (a) R = La, hexagonal , (b) R = Ce, hexagonal, (c) R = Eu, hexagonal, (d) R = Dy, hexagonal, (e) R = U, hexagonal and (f) R = Th, tetragonal. |