Pedros, J and Garcia-Gancedo, L and Ford, CJB and Benesh, MJ and Griffiths, JP and Jones, GAC and Flewitt, AJ (2012) Surface acoustic waves in liquid helium for enhanced single-electron transport applications. IEEE International Ultrasonics Symposium, IUS. ISSN 1948-5719Full text not available from this repository.
High frequency Rayleigh and Sezawa modes propagating in the ZnO/GaAs system capable of operating immersed in liquid helium have been engineered. In the case of the Rayleigh mode, the strong attenuation produced by the liquid is counteracted by the strengthening of the mode induced by the ZnO. However, in the case of the Sezawa modes, the attenuation is strongly reduced taking advantage of the depth profile of their acoustic Poynting vectors, that extend deeper into the layered system, reducing the energy radiated into the fluid. Thus, both tailored modes will be suitable for acoustically-driven single-electron and single-photon devices in ZnO-coated GaAs-based systems with the best thermal stability provided by the liquid helium bath. © 2012 IEEE.
|Divisions:||Div B > Solid State Electronics and Nanoscale Science|
|Depositing User:||Cron Job|
|Date Deposited:||15 Dec 2015 13:04|
|Last Modified:||28 Apr 2016 06:10|