Figure 5

Distribution of the major VCs centered with (a) Cu, (b) Zr, and (c) Nb atoms. Coordination numbers here are the numbers of shell atoms surrounding the centers in VCs. Note only those whose fractions are larger than 1.5% are selected. Nbx (x = 0, 1, 2, 3, and 4) denote the (Cu64Zr36)100−xNbx (x = 0, 1, 2, 3, and 4) compositions.