Daniel J. Coady, Amanda C. Engler, et al.
ACS Macro Letters
We report the observation of umklapp Raman scattering of phonons with wavevector of 2nπ d in GaAs-Ga1-xAlxAs superlattices with period d, due to resonance enhancements at transitions from valence band to conduction band minibands. We also observed, for the first time, minizone formation in the spin-orbit split valence band. © 1978.
Daniel J. Coady, Amanda C. Engler, et al.
ACS Macro Letters
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