{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Rechnitz S"],"funding":["Israel Science Foundation (ISF)"],"pagination":["5900"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9537592"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["13(1)"],"pubmed_abstract":["Bi-stable mechanical resonators play a significant role in various applications, such as sensors, memory elements, quantum computing and mechanical parametric amplification. While carbon nanotube based resonators have been widely investigated as promising NEMS devices, a bi-stable carbon nanotube resonator has never been demonstrated. Here, we report a class of carbon nanotube resonators in which the nanotube is buckled upward. We show that a small upward buckling yields record electrical frequency tunability, whereas larger buckling can achieve Euler-Bernoulli bi-stability, the smallest mechanical resonator with two stable configurations to date. We believe that these recently-discovered carbon nanotube devices will open new avenues for realizing nano-sensors, mechanical memory elements and mechanical parametric amplifiers. Furthermore, we present a three-dimensional theoretical analysis revealing significant nonlinear coupling between the in-plane and out-of-plane static and dynamic modes of motion, and a unique three-dimensional Euler-Bernoulli snap-through transition. We utilize this coupling to provide a conclusive explanation for the low quality factor in carbon nanotube resonators at room temperature, key in understanding dissipation mechanisms at the nano scale."],"journal":["Nature communications"],"pubmed_title":["Mode coupling bi-stability and spectral broadening in buckled carbon nanotube mechanical resonators."],"pmcid":["PMC9537592"],"funding_grant_id":["1854/19"],"pubmed_authors":["Tabachnik T","Yaish YE","Shlafman S","Rechnitz S","Shlafman M"],"additional_accession":[]},"is_claimable":false,"name":"Mode coupling bi-stability and spectral broadening in buckled carbon nanotube mechanical resonators.","description":"Bi-stable mechanical resonators play a significant role in various applications, such as sensors, memory elements, quantum computing and mechanical parametric amplification. While carbon nanotube based resonators have been widely investigated as promising NEMS devices, a bi-stable carbon nanotube resonator has never been demonstrated. Here, we report a class of carbon nanotube resonators in which the nanotube is buckled upward. We show that a small upward buckling yields record electrical frequency tunability, whereas larger buckling can achieve Euler-Bernoulli bi-stability, the smallest mechanical resonator with two stable configurations to date. We believe that these recently-discovered carbon nanotube devices will open new avenues for realizing nano-sensors, mechanical memory elements and mechanical parametric amplifiers. Furthermore, we present a three-dimensional theoretical analysis revealing significant nonlinear coupling between the in-plane and out-of-plane static and dynamic modes of motion, and a unique three-dimensional Euler-Bernoulli snap-through transition. We utilize this coupling to provide a conclusive explanation for the low quality factor in carbon nanotube resonators at room temperature, key in understanding dissipation mechanisms at the nano scale.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Oct","modification":"2025-04-04T14:34:17.275Z","creation":"2025-04-04T14:34:17.275Z"},"accession":"S-EPMC9537592","cross_references":{"pubmed":["36202803"],"doi":["10.1038/s41467-022-33440-4"]}}