2008
DOI: 10.1134/s1063782608100126
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Ab initio calculations of phonon spectra of (GaP) n (AlP) m superlattices

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Cited by 8 publications
(3 citation statements)
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“…In contrary to the phonon peaks of the GaP sublattice, the LO 2 and TO 2 phonons of the AlP sublattice slightly shift toward higher energies for samples 1-4 with increasing Al composition in the AlGaP shell. Kosobutskiĭ and Malysheva calculated 497 cm -1 for the LO phonon frequency for AlP [16]. As expected, also the relative intensities of the peak for the AlP sublattice as compared to the GaP sublattice increase from samples 1 to 4.…”
Section: Resultssupporting
confidence: 69%
See 1 more Smart Citation
“…In contrary to the phonon peaks of the GaP sublattice, the LO 2 and TO 2 phonons of the AlP sublattice slightly shift toward higher energies for samples 1-4 with increasing Al composition in the AlGaP shell. Kosobutskiĭ and Malysheva calculated 497 cm -1 for the LO phonon frequency for AlP [16]. As expected, also the relative intensities of the peak for the AlP sublattice as compared to the GaP sublattice increase from samples 1 to 4.…”
Section: Resultssupporting
confidence: 69%
“…Semiconductor phonon energies can provide insight into how phonon spectra and composition of both bulk and NW ternary semiconductors correlate [12][13][14][15]. Kosobutskiĭ and Malysheva calculated phonon energies for GaP and AlP and obtained a higher energy of the LO phonon at the Γ-point for AlP than for GaP [16]. Later, Armelles and co-workers calculated the phonon energies for the entire composition range of Al x Ga 1−x P [17].…”
Section: Introductionmentioning
confidence: 99%
“…The accumulation of modes in the 450À475 cm À1 range matches well the broad experimental shoulder in that range, where we expect modes involving AlÀP optical vibrations. 18 The highest predicted frequency is 506 cm À1 , somewhat below the experimental value, but this discrepancy may also be due to the use of a fully ordered 20-atom structure in the phonon calculation.…”
Section: ' Bonding Elucidation From Simulation and Raman Spectroscopymentioning
confidence: 99%