## Figure 4.
Stiffness of silicon nanowire,
k_{NW}, with its diameter of 525 nm as a function of indentation force, F. It is shown that the relationship between k_{NW} and F is well described by a scaling of k_{NW} = αF^{1/3}, where α is a constant parameter depending on nanowire geometry. It implies that
nanoindentation of silicon nanowire is well described by classical elasticity theory
such as Hertz theory
Sohn |