Cubic-to-Tetragonal Phase Transitions in Ag–Cu Nanorods

Figure 4

A grid showing the different combination of side length 𝑠 and number 𝑘 of Cu atomic planes for all of the composite Ag–Cu–Ag NRs considered. Dark and light gray indicate, respectively, the NRs entirely and partially involved in fcc-to-bct phase transitions. The red circles point out the NRs in which the fcc-to-bct phase transition of Ag end portions does not find counterpart in pure Ag NRs of the same size.