| Title | Suppression of LO phonon scattering in Landau quantized quantum dots |
| Publication Type | Journal Article |
| Year of Publication | 1999 |
| Authors | B.N Murdin, A.R Hollingworth, M. Kamal-Saadi, R.T Kotitschke, C.M Ciesla, C.R Pidgeon, P.C Findlay, H.PM Pellemans, C Langerak, A.C Rowe, R.A Stradling, E. Gornik |
| Journal | Physical Review B |
| Volume | 59 |
| Number | 12 |
| Pagination | R7817-R7820 |
| Date Published | Mar 15 |
| ISBN Number | 1098-0121; 1550-235X |
| Abstract | Picosecond time-resolved far-infrared measurements are presented of the scattering between conduction-band states in a doped quasi quantum dot. These states are created by the application of a magnetic field along the growth direction of an InAs/AlSb quantum well. A clear suppression of the cooling rate is seen, from 10(12) s(-1) when the level spacing is equal to the phonon energy, to 10(10) s(-1) away from this resonance, and thus the results provide unambiguous evidence for the phonon bottleneck. Furthermore, the lifetimes had only weak dependence on temperature between 4 and 80 K. [S0163-1829(99)50612-7]. |
| DOI | 10.1103/PhysRevB.59.R7817 |
| PID | 30de7c13ab0b8d4ae75966a6db4fc8e8 |
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