New insights on the applicability of Eringen's nonlocal theory

Another contribution in this study is the determination of the nonlocal parameters for various crystal materials by fitting their dispersions with the proposed nonlocal theory. Thus, the elastic moduli and the nonlocal parameters of metallic crystals (such as Au, Ag, Cu, and Pt), diamond structure crystals (such as diamond and Si), layered structure crystals (such as graphite), Metal Oxides and Alkali Halides with Rock-Salt structures (such as BaO, NiO, LiH and LiD), and Fluorite structure crystals (such as Mg2Sn and Mg2Pb) are reported.