Nanofluidics of Single-crystal Diamond Nanomechanical Resonators

Single-crystal diamond nanomechanical resonators are being developed for countless applications. A number of these applications require that the resonator be operated in a fluid, i.e., a gas or a liquid. Here, we investigate the fluid dynamics of single-crystal diamond nanomechanical resonators in t...

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Published in:arXiv.org 2015-11
Main Authors: Kara, V, Y -I Sohn, Atikian, H, Yakhot, V, Loncar, M, Ekinci, K L
Format: Article
Language:English
Subjects:
Diamonds
Fluid dynamics
Fluidics
Molecular flow
Nanofluids
Pressure dependence
Resonators
Single crystals
Variation
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Y -I Sohn
Atikian, H
Yakhot, V
Loncar, M
Ekinci, K L
description Single-crystal diamond nanomechanical resonators are being developed for countless applications. A number of these applications require that the resonator be operated in a fluid, i.e., a gas or a liquid. Here, we investigate the fluid dynamics of single-crystal diamond nanomechanical resonators in the form of nanocantilevers. First, we measure the pressure-dependent dissipation of diamond nanocantilevers with different linear dimensions and frequencies in three gases, He, N\(_2\), and Ar. We observe that a subtle interplay between the length scale and the frequency governs the scaling of the fluidic dissipation. Second, we obtain a comparison of the surface accommodation of different gases on the diamond surface by analyzing the dissipation in the molecular flow regime. Finally, we measure the thermal fluctuations of the nanocantilevers in water, and compare the observed dissipation and frequency shifts with theoretical predictions. These findings set the stage for developing diamond nanomechanical resonators operable in fluids.
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subjects Diamonds
Fluid dynamics
Fluidics
Molecular flow
Nanofluids
Pressure dependence
Resonators
Single crystals
Variation
title Nanofluidics of Single-crystal Diamond Nanomechanical Resonators
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