The force constants between planes in lattice dynamics have been derived from a new model set by the Embedded Atom Method(EAM),based on tile results from density-functional theory.The semiempirical functions for Cu ha...The force constants between planes in lattice dynamics have been derived from a new model set by the Embedded Atom Method(EAM),based on tile results from density-functional theory.The semiempirical functions for Cu have been obtained by EAM,and the force constants between planes of Cu are calculated,which produce phonon dispersions in agreement with experiments.展开更多
文摘The force constants between planes in lattice dynamics have been derived from a new model set by the Embedded Atom Method(EAM),based on tile results from density-functional theory.The semiempirical functions for Cu have been obtained by EAM,and the force constants between planes of Cu are calculated,which produce phonon dispersions in agreement with experiments.
