Phononic crystal with adaptive connectivity.

@article{Bergamini2014PhononicCW,
  title={Phononic crystal with adaptive connectivity.},
  author={A. Bergamini and Tommaso Delpero and Luca De Simoni and Luigi Di Lillo and Massimo Ruzzene and P. Ermanni},
  journal={Advanced materials},
  year={2014},
  volume={26 9},
  pages={1343-7}
}
The band structure of a phononic crystal can be controlled by tuning the mechanical stiffness of the links connecting its constituting elements. The first implementation of a phononic crystal with adaptive connectivity is obtained by using piezoelectric resonators as variable stiffness elements, and its wave-propagation properties are experimentally characterized. 
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