2012/04/24 by P. F. Guan, Takeshi Fujita, Akihiko Hirata +2 · 1 citation
Engineering · Materials Science · #Material Dynamics and Properties #Metallic Glasses and Amorphous Alloys #Phase-change materials and chalcogenides
paper · doi:10.1103/physrevlett.108.175501
openalex publication_date 2012/04/24 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/22
We report a hybrid atomic packing scheme comprised of a covalent-bond-mediated "stereochemical" structure and a densely packed icosahedron in a bulk metallic glass Pd40Ni40P20. The coexistence of two atomic packing models can simultaneously satisfy the criteria for both the charge saturation of the metalloid element and the densest atomic packing of the metallic elements. The hybrid packing scheme uncovers the structural origins of the excellent glass forming ability of Pd40Ni40P20 and has important implications in understanding the bulk metallic glass formation of metal-metalloid alloys.