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Strong gate coupling of high-Q nanomechanical resonators
Jaakko Sulkko, Mika A. Sillanpää, Pasi Häkkinen +5
The detection of mechanical vibrations near the quantum limit is a formidable challenge since the displacement becomes vanishingly small when the number of phonon quanta tends towa…
Mass coupling and ^3$He in a torsion pendulum
R. G. Bennett, N. Zhelev, A. D. Fefferman +5
We present results of the and period shift, , for He confined in a 98% nominal open aerogel on a torsion pendulum. The aerogel is compressed uniaxially by 10% alon…
High-Q Nanomechanics via Destructive Interference of Elastic Waves
I. Wilson-Rae, R. A. Barton, S. S. Verbridge +4
Mechanical dissipation poses an ubiquitous challenge to the performance of nanomechanical devices. Here we analyze the support-induced dissipation of high-stress nanomechanical res…
Quantum transport in mesoscopic He films: experimental study of the interference of bulk and boundary scattering
P. Sharma, A. Córcoles, R. G. Bennett +4
We discuss the mass transport of a degenerate Fermi liquid He film over a rough surface, and the film momentum relaxation time, in the framework of theoretical predictions. In…
Tuning mechanical modes and influence of charge screening in nanowire resonators
Hari S. Solanki, Shamashis Sengupta, Sajal Dhara +6
We probe electro-mechanical properties of InAs nanowire (diameter ~ 100 nm) resonators where the suspended nanowire (NW) is also the active channel of a field effect transistor (FE…