Abstract
Oscillatory spectra and single-phonon state densities are calculated in the Keating atomic interaction model for the ultrathin superlattices Si3Ge1 and Si1Ge3. Fundamental features of the superlattice phonon spectra and their relationship to the spectra of Si and Ge crystals are analyzed. Conditions required for oscillation localization in the interface region are studied and the role of the Si-Ge bond in formation of interlayer oscillations is considered.
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T. P. Pearsall, J. Bevk, J. C. Bean, et al.,Phys. Rev. B 39, 3741 (1989); G. Absreiter, H. Brugger, K. Eberl, et al.,Proc. Soc. Photo-Opt. Instr. Eng., 792, 77 (1987).
S. Froyen, D. M. Wood, and A. Zunger,Appl. Phys. Lett.,54, 2435 (1989).
M. Cardona,Superlatt. Microstr.,5, 27 (1989).
E. Friess, K. Eberl, U. Menczigar, et al.,Sol. St. Comm.,73, 203 (1990).
J. Zi, K. Zhang, and X. Xie,J. Phys. Cond. Matt.,3, 6239 (1991).
H. Okumura, K. Miki, K. Sakamoto, et al.,Appl. Surf. Sci.,41/42, 548 (1989).
W. Bosca, M. Ospeit, J. Henz, et al.,Thin Sol. Films,183, 65 (1989).
I. Lee and C. Y. Fong,Superlatt. Microstr.,7, 153 (1990).
J. Zi, K. Zhang, and X. Xie,J. Phys. Cond. Matt.,2, 2473 (1990).
V. A. Gaisler, V. A. Markov, M. P. Sinyukov, et al.,Fiz. Tverd. Tela 31, 284 (1989).
J. D. White, G. Fasol, R. A. Chanbari, et al.,Phys. Rev. B 42, 7033 (1990).
O. V. Kovalev,Irreducible and Induced Representations and Co-Representations of Fedorov Groups [in Russian], Nauka, Moscow (1986).
P. N. Keating,Phys. Rev.,145, 637 (1966).
E. Molinari and A. Fasolino,Appl. Phys. Lett.,54, 1220 (1989);Surf. Sci.,228, 112 (1990).
M. I. Alonso, M. Cardona, and G. Kanellis,Sol. St. Comm.,69, 479 (1989).
E. A. Montie, G. F. A. Van de Walle, D. J. Gravesteijn, et al.,Thin Sol. Films,183, 105 (1989).
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii. Fizika, No. 8, pp. 40–44, August, 1993.
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Skachkov, S.I., Tyuterev, V.G. Phonons in Si3Ge1 and Si1Ge3 short-period superlattices. Russ Phys J 36, 741–744 (1993). https://doi.org/10.1007/BF00562025
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DOI: https://doi.org/10.1007/BF00562025