Time-resolved phonon absorption in the fractional quantum Hall regime
| Autor: | Christopher J. Mellor, Anthony J. Kent, Tin S. Cheng, Keith A. Benedict, J.E. Digby, J.R. Middleton, Uli Zeitler, L. J. Challis |
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| Rok vydání: | 1996 |
| Předmět: |
Absorption spectroscopy
Condensed matter physics Phonon Chemistry Time constant Heterojunction Surfaces and Interfaces Quantum Hall effect Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Surfaces Coatings and Films Condensed Matter::Materials Science Rise time Fractional quantum Hall effect Materials Chemistry Absorption (electromagnetic radiation) |
| Zdroj: | Surface Science. :34-37 |
| ISSN: | 0039-6028 |
| DOI: | 10.1016/0039-6028(96)00324-x |
| Popis: | We report time-resolved measurements of phonon absorption in the fractional quantum Hall regime. Experiments have been conducted on an n-type heterojunction grown on a 1.8 mm GaAs wafer. The start of the absorption signal is consistent with the ballistic phonon time-of-flight. The initial rise time is consistent with the time constant of our device and external circuits. This is followed by unusually slow rise and decay times. |
| Databáze: | OpenAIRE |
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