Publikation:

Universal Length Dependence of Tensile Stress in Nanomechanical String Resonators

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2021

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Nägele, Felix B.
Braive, Rémy

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https://doi.org/10.1103/PhysRevApplied.15.034063
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http://arxiv.org/abs/2012.00507v2

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European Union (EU): 732894

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H2020 FET PROACTIVE Hybrid Optomechanical Technologies (HOT)
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Physical Review Applied. American Physical Society (APS). 2021, 15(3), 034063. eISSN 2331-7019. Available under: doi: 10.1103/PhysRevApplied.15.034063

Zusammenfassung

We investigate the tensile stress in freely suspended nanomechanical string resonators, and observe a material-independent dependence on the resonator length. We compare strongly stressed string resonators fabricated from four different material systems based on amorphous silicon nitride, crystalline silicon carbide as well as crystalline indium gallium phosphide. The tensile stress is found to increase by approximately 50% for shorter resonators. We establish a simple elastic model to describe the observed length dependence of the tensile stress. The model accurately describes our experimental data. This opens a perspective for stress engineering the mechanical quality factor of nanomechanical string resonators.

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ISO 690BÜCKLE, Maximilian, Yannick S. KLASS, Felix B. NÄGELE, Rémy BRAIVE, Eva M. WEIG, 2021. Universal Length Dependence of Tensile Stress in Nanomechanical String Resonators. In: Physical Review Applied. American Physical Society (APS). 2021, 15(3), 034063. eISSN 2331-7019. Available under: doi: 10.1103/PhysRevApplied.15.034063
BibTex
@article{Buckle2021Unive-54524,
  year={2021},
  doi={10.1103/PhysRevApplied.15.034063},
  title={Universal Length Dependence of Tensile Stress in Nanomechanical String Resonators},
  number={3},
  volume={15},
  journal={Physical Review Applied},
  author={Bückle, Maximilian and Klaß, Yannick S. and Nägele, Felix B. and Braive, Rémy and Weig, Eva M.},
  note={Article Number: 034063}
}
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