Pippard (amorphous solids)

Pippard’s model of amorphous solids describes how atoms are arranged in materials without a regular crystalline structure. Unlike crystals, where atoms are neatly ordered, amorphous solids have atoms positioned randomly. Pippard proposed that in such materials, atomic vibrations are influenced by this disorder, affecting properties like electrical conductivity and elasticity. His work helps explain how the lack of long-range order impacts the physical behavior of materials like glass and plastics, emphasizing the importance of local atomic arrangements and their effects on macroscopic properties.