Coupling of nonlinear polarization in a dielectric medium in a piezoelectric film to mechanical motion leads to a resonator with nonlinear behavior in the acoustic frequency range.

Spin is an intrinsically quantum property, characterizing angular momentum. A change in the electron spin state is equivalent to a change in the angular momentum or mechanical torque. Could this torque be measured by nanomechanical torsion resonator?

Diamond is amazing. It is an extremely hard material with high fracture constant and high elastic modulus. It conducts heat better than gold, copper and silicon. Naturally occurring diamond is an electrical insulator, however with suitable doping it can be easily transformed into a semiconductor or even a conventional superconductor with relatively high critical temperature.

Dissipation of energy in micro- and nano-electromechanical resonators governs their dynamical response and limits their potential use in device applications. Quantified by the quality factor Q, dissipation (1/Q) usually occurs by energy loss mechanisms that are linear, appearing as a damping term proportional to the velocity.

This article is a review of the dissipation processes in nanoelectromechanical systems (NEMS).

We report direct measurements of average vibration energy in a high frequency flexural resonance mode achieved via an-harmonic elastic coupling to a fundamental vibration mode of a nanomechanical resonator.