Dresden 2014 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 101: Transport - Poster Session
TT 101.24: Poster
Donnerstag, 3. April 2014, 15:00–19:00, P2
Exploring mechanical material parameters from spectroscopy of nano-electromechanical systems — •Anh Tu Bohn1, F. Hocke1, M. Pernpeintner1, X. Zhou3,5, A. Schliesser4, T. J. Kippenberg3,5, R. Gross1,2, and H. Huebl1 — 1Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, Germany — 2Physik-Department, TU München, Germany — 3École Polytechnique Fédérale de Lausanne, Switzerland — 4Niels Bohr Institute, University of Copenhagen, Denmark — 5Max-Planck-Institut für Quantenoptik, Germany
The field of nano-electromechanics combines nanomechanical resonators with electrical circuits.
In our nano-electromechanics experiments, we investigate a double layer nanomechanical beam consisting of Si3N4 and Niobium
coupled to a superconducting microwave resonator.
Using microwave noise spectroscopy, we determine the electromechanical coupling. Furthermore, the investigation of the nonlinear Duffing regime gives access to the Young’s modulus of the nano-beam. We compare our results with finite element modelling corroborating our experimental data. Additionally, we show that our experimental results can be well modelled by standard beam theory.
Our technique provides a new way to explore the mechanical parameters of nanomechanical beams and could be extended to other hybrid structures. Financial support via the Nanosystems Initiative Munich is gratefully acknowledged.