@article{Hocke:203222, title = {Determination of effective mechanical properties of a double-layer beam by means of a nano-electromechanical transducer}, author = {Hocke, Fredrik and Pernpeintner, Matthias and Zhou, Xiaoqing and Schliesser, Albert and Kippenberg, Tobias J. and Huebl, Hans and Gross, Rudolf}, publisher = {Amer Inst Physics}, journal = {Applied Physics Letters}, address = {Melville}, number = {13}, volume = {105}, pages = {4}, year = {2014}, abstract = {We investigate the mechanical properties of a doubly clamped, double-layer nanobeam embedded into an electromechanical system. The nanobeam consists of a highly pre-stressed silicon nitride and a superconducting niobium layer. By measuring the mechanical displacement spectral density both in the linear and the nonlinear Duffing regime, we determine the pre-stress and the effective Young's modulus of the nanobeam. An analytical double-layer model quantitatively corroborates the measured values. This suggests that this model can be used to design mechanical multilayer systems for electro- and optomechanical devices, including materials controllable by external parameters such as piezoelectric, magnetostrictive, or in more general multiferroic materials. (C) 2014 AIP Publishing LLC.}, url = {http://infoscience.epfl.ch/record/203222}, doi = {10.1063/1.4896785}, }