McWhan, D. B. ; Hu, P. ; Chin, M. A. ; Narayanamurti, V. (1982) Observation of optically excited near-zone-edge phonons in GaAs by diffuse X-ray scattering Physical Review B: Condensed Matter and Materials Physics, 26 (8). pp. 4774-4776. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v26/i8/p4774_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.26.4774
Abstract
We report on the use of diffuse X-ray scattering as a probe of nonequilibrium phonon excitations generated optically in GaAs at T≈ 1.5 K. The measurements show a substantial athermal population of TA phonons near the [111] zone boundary consistent with a lifetime of microseconds.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 87502 |
| Deposited On: | 19 Mar 2012 06:53 |
| Last Modified: | 19 Mar 2012 06:53 |
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