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arXiv · 1401.4010

Size-independent Young's modulus of inverted conical GaAs nanowire resonators

P. Paulitschke·N. Seltner·A. Lebedev·H. Lorenz·E. M. Weig
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Abstract

We explore mechanical properties of top down fabricated, singly clamped inverted conical GaAs nanowires. Combining nanowire lengths of 2-9 $\mu$m with foot diameters of 36-935 nm yields fundamental flexural eigenmodes spanning two orders of magnitude from 200 kHz to 42 MHz. We extract a size-independent value of Young's modulus of (45$\pm$3) GPa. With foot diameters down to a few tens of nanometers, the investigated nanowires are promising candidates for ultra-flexible and ultra-sensitive nanomechanical devices.

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P. Paulitschke, N. Seltner, A. Lebedev, H. Lorenz, E. M. Weig. 2014-01-16. Size-independent Young's modulus of inverted conical GaAs nanowire resonators. https://doi.org/10.1063/1.4851897

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