Integrating suspended quantum dot circuits for applications in nanomechanics
- 8 July 2002
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 81 (2) , 280-282
- https://doi.org/10.1063/1.1492302
Abstract
We present an integrated nanoelectromechanical circuit designed for achieving ultrasensitive displacement detection. It consists of a suspended quantum dot defined in the two-dimensional electron system of an AlGaAs/GaAs heterostructure and a mechanical resonator located in close vicinity. Operation of the individual components is demonstrated: Mechanical as well as transport properties of the resonator and the electron system are specified, respectively. Coulomb blockade in a freely suspended quantum dot is revealed. The data are used to estimate the maximum displacement sensitivity of the device to be
Keywords
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