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

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

doi:10.1063/1.4851897

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

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

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

We explore mechanical properties of top down fabricated, singly clamped inverted conical GaAs nanowires. Combining nanowire lengths of 2-9 μm 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 ± 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.

Original language	English
Article number	261901
Journal	Applied Physics Letters
Volume	103
Issue number	26
DOIs	https://doi.org/10.1063/1.4851897
State	Published - 23 Dec 2013
Externally published	Yes

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10.1063/1.4851897

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title = "Size-independent Young's modulus of inverted conical GaAs nanowire resonators",

abstract = "We explore mechanical properties of top down fabricated, singly clamped inverted conical GaAs nanowires. Combining nanowire lengths of 2-9 μm 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 ± 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.",

author = "P. Paulitschke and N. Seltner and A. Lebedev and H. Lorenz and Weig, {E. M.}",

note = "Funding Information: Financial support from the Volkswagen Foundation, the German Excellence Initiative via the Nanosystems Initiative Munich (NIM), LMUinnovativ as well as LMUexcellent, and the Center for NanoScience (CeNS) is gratefully acknowledged. The authors appreciate ongoing support and stimulating discussion with J. P. Kotthaus.",

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T1 - Size-independent Young's modulus of inverted conical GaAs nanowire resonators

AU - Paulitschke, P.

AU - Seltner, N.

AU - Lebedev, A.

AU - Lorenz, H.

AU - Weig, E. M.

N1 - Funding Information: Financial support from the Volkswagen Foundation, the German Excellence Initiative via the Nanosystems Initiative Munich (NIM), LMUinnovativ as well as LMUexcellent, and the Center for NanoScience (CeNS) is gratefully acknowledged. The authors appreciate ongoing support and stimulating discussion with J. P. Kotthaus.

PY - 2013/12/23

Y1 - 2013/12/23

N2 - We explore mechanical properties of top down fabricated, singly clamped inverted conical GaAs nanowires. Combining nanowire lengths of 2-9 μm 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 ± 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.

AB - We explore mechanical properties of top down fabricated, singly clamped inverted conical GaAs nanowires. Combining nanowire lengths of 2-9 μm 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 ± 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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JO - Applied Physics Letters

JF - Applied Physics Letters

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

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