Momentum damping time and phonon-wind force for electron-hole droplets in Ge
- 15 September 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 24 (6) , 3596-3599
- https://doi.org/10.1103/physrevb.24.3596
Abstract
Time-resolved luminescence imaging is used to investigate the transport properties of electron-hole droplets in Ge. The momentum damping time of droplets is directly obtained by measuring their drift velocity in a calibrated strain field. The magnitude of the phonon-wind force on the droplets is determined by direct comparison to the strain force. The spatial distribution of "hot" electron-hole liquid in the sample is also determined, and the electron intervalley scattering time is measured by a new "streak" method.Keywords
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