Thermal conductivity of silicon nitride membranes is not sensitive to stress
H Ftouni, C Blanc, D Tainoff, AD Fefferman, M Defoort… - Physical Review B, 2015 - APS
We have measured the thermal properties of suspended membranes from 10 to 300 K for
two amplitudes of internal stress (about 0.1 and 1 GPa) and for two different thicknesses (50 …
two amplitudes of internal stress (about 0.1 and 1 GPa) and for two different thicknesses (50 …
Modeling and observation of nonlinear damping in dissipation-diluted nanomechanical resonators
Dissipation dilution enables extremely low linear loss in stressed, high aspect ratio
nanomechanical resonators, such as strings or membranes. Here, we report on the …
nanomechanical resonators, such as strings or membranes. Here, we report on the …
A gradient elasticity model of Bernoulli–Euler nanobeams in non-isothermal environments
Abstract The Bernoulli–Euler beam formulation is extended by means of the nonlocal strain
gradient theory in the nonhomogenous temperature field setting. Starting from the nonlocal …
gradient theory in the nonhomogenous temperature field setting. Starting from the nonlocal …
On-chip thermometry for microwave optomechanics implemented in a nuclear demagnetization cryostat
We report on microwave optomechanics measurements performed on a nuclear adiabatic
demagnetization cryostat, whose temperature is determined by accurate thermometry from …
demagnetization cryostat, whose temperature is determined by accurate thermometry from …
Slippage and boundary layer probed in an almost ideal gas by a nanomechanical oscillator
We measure the interaction between He 4 gas at 4.2 K and a high-quality
nanoelectromechanical string device for its first three symmetric modes (resonating at 2.2 …
nanoelectromechanical string device for its first three symmetric modes (resonating at 2.2 …
Universality of thermal transport in amorphous nanowires at low temperatures
A Tavakoli, C Blanc, H Ftouni, KJ Lulla, AD Fefferman… - Physical Review B, 2017 - APS
Thermal transport properties of amorphous materials at low temperatures are governed by
the interaction between phonons and localized excitations referred to as tunneling two-level …
the interaction between phonons and localized excitations referred to as tunneling two-level …
Surface-induced near-field scaling in the Knudsen layer of a rarefied gas
We report on experiments performed within the Knudsen boundary layer of a low-pressure
gas. The noninvasive probe we use is a suspended nanoelectromechanical string, which …
gas. The noninvasive probe we use is a suspended nanoelectromechanical string, which …
Calculation and design of GaAs quantum dot devices where the vibrational modes can be frozen out at cryogenic temperatures
G Stefanou, C Smith - Semiconductor Science and Technology, 2024 - iopscience.iop.org
We calculate how the frequencies of the vibrational modes in a free-standing GaAs bar are
changed as a function of the bar's geometrical features such as length, thickness and shape …
changed as a function of the bar's geometrical features such as length, thickness and shape …
Remote sensing in hybridized arrays of nanostrings
We study high-Q nanostrings that are joined end-to-end to form coupled linear arrays.
Whereas isolated individual resonators exhibit sinusoidal vibrational modes with an almost …
Whereas isolated individual resonators exhibit sinusoidal vibrational modes with an almost …
Non-linear dynamics in nano-electromechanical systems at low temperatures
M Defoort - 2014 - hal.science
The investigation of non-linear dynamics intrinsically opens access to a broad field of
researches, and Nano-Electro-Mechanical Systems (NEMS) are valuable tools for this …
researches, and Nano-Electro-Mechanical Systems (NEMS) are valuable tools for this …