科研之友
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摘要
Doped GaAs/AlAs superlattices grown on the (311)A and (311)B surfaces have been studied using Raman spectroscopy. Phonon and phonon-plasmon modes with different directions of the wave vectors in the superlattice plane (i.e., the modes propagating in different lateral directions) have been observed in back-scattering from the superlattice face with the use of a Raman scattering accessory. Lateral anisotropy of mixed phonon-plasmon modes associated with structural anisotropy of the superlattice grown on the faceted (311)A surface has been experimentally revealed for the first time.
- 出版日期2011-2
