Figure 5.

The theoretical curve, which relates the resonant frequency to the effective Young's modulus of a sample, fitted to the experimental data (ο) for the reference. The error bars and the broken curves indicate the 95% confidence regions, namely twice the standard deviations.

Muraoka and Komatsu Nanoscale Res Lett 2011 6:33   doi:10.1007/s11671-010-9778-8