Properties of a Monolithic Electroacoustic Device Geometry Using GaAs Resonant Tunnelling Structures
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概要
- 論文の詳細を見る
We present experimental and theoretical work on a monolithic electroacoustic system which exploits the interaction between a 1 GHz surface acoustic wave and electrons in a GaAs-AlGaAs resonant tunnelling structure. Non-annealed Ohmic contacts using in situ grown Al are employed to obtain stable dc operation. The microwave response of the system is explained, with features attributed to charge accumulation in the spacer layer adjacent to the quantum well. The influence of screening of the surface acoustic wave potential by the highly-doped substrate is also investigated, showing the need for a wide depletion layer. Potential applications for this system in signal processing and power microwave devices are discussed, along with a suggested mechanism for a non-dispersive surface acoustic wave transducer which relies on the nonlinear properties of the system.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-04-30
著者
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Pepper Michael
Cavendish Laboratory University Of Cambridge
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HUTCHINSON Alexander
Cavendish Laboratory, University of Cambridge
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HARRELL Ruth
Cavendish Laboratory, University of Cambridge
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Talyanskii Valery
Cavendish Laboratory University Of Cambridge
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Linfield Edmund
Cavendish Laboratory Madingley Road
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Hutchinson Alexander
Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom
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Talyanskii Valery
Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom
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Pepper Michael
Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom
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Harrell Ruth
Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom
関連論文
- Properties of a Monolithic Electroacoustic Device Geometry Using GaAs Resonant Tunnelling Structures
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- Properties of a Monolithic Electroacoustic Device Geometry Using GaAs Resonant Tunnelling Structures