Interatomic force of hexagonal close packed and face centered cubic Co nanowires with different diameters

摘要

In this work, the interatomic force of hexagonal close packed (hcp) and face centered cubic (fcc) was studied based on the interatomic interaction potential energy curve using in-situ high temperature X-ray diffraction (XRD) in the range of 25-800 °C. The results indicate that the interaction force between atoms for Co nanowires with 45 nm is larger than that for Co nanowires with 55 nm regardless of their hcp and fcc structures. The finding here might be attributed to the surface tension effects, which is of great fundamental and practical significance for the nanodevice application.