Sood, A. K. ; Menéndez, J. ; Cardona, M. ; Ploog, K. (1985) Second-order Raman scattering by confined optical phonons and interface vibrational modes in GaAs-AlAs superlattices Physical Review B: Condensed Matter and Materials Physics, 32 (2). pp. 1412-1414. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v32/i2/p1412_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.32.1412
Abstract
The second-order Raman spectrum of the confined GaAs-like optical phonons in a GaAs-AlAs superlattice is reported. For laser energies in resonance with the first exciton in the GaAs quantum wells, the experiments show a series of sharp peaks that can be attributed to combinations of confined phonons of A1 symmetry. An additional broader peak corresponds to the combination of the GaAs-like and AlAs-like interface vibrational modes previously reported in the first-order spectra. The resonance profile of the overtones and combinations of confined phonons is also presented.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 50260 |
| Deposited On: | 22 Jul 2011 13:37 |
| Last Modified: | 22 Jul 2011 13:37 |
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