“…With many efforts, the liquid-to-liquid crossover has been observed in several liquids, such as H 2 O, C, P and Si [1][2][3]9,16,39,42,44,48,49]. Recently, it was also revealed in pure liquid Ce [20], supercooled liquid Zr 41.2 Ti 13.8 Cu 12.5 Ni 10 Be 22.5 [23] and liquid La 50 Al 35 Ni 15 [47], remaining as an intriguing but still elusive phenomenon in metallic liquids. For several monoatomic metallic liquids (i.e., Al, Zn, Sn and In), Lou et al [21] found that the interatomic distances between the center atom and those on the first shell contract with increasing temperature, which promotes deeper understanding on the atomic structure evolution in metallic liquids [22,[24][25][26][27]29,[31][32][33][34][36][37][38]51].…”