Abstract
The infrared reflection spectra of PbTe/CdTe multilayer nanostructures grown by molecular-beam epitaxy are measured in the frequency range of 20–5000 cm−1 at room temperature. The thicknesses and high-frequency dielectric constants of the PbTe and CdTe layers and the frequencies of the transverse optical (TO) phonons in these structures are determined from dispersion analysis of the spectra. It is found that the samples under study are characterized by two TO phonon frequencies, equal to 28 and 47 cm−1. The first frequency is close to that of TO phonons in bulk PbTe, and the second is assigned to the optical mode in structurally distorted interface layers. The Raman-scattering spectra upon excitation with the radiation of an Ar+ laser at 514.5 nm are measured at room and liquid-nitrogen temperatures. The weak line at 106 cm−1 observed in these spectra is attributed to longitudinal optical phonons in the interface layers.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
W. Heiss, H. Groiss, E. Kaufmann, G. Hesser, M. Bobere, G. Springholz, F. Schaffler, R. Leitsmann, F. Bechstedt, K. Koike, H. Horada, and M. Yano, J. Appl. Phys. 101, 081723 (2007).
W. Heiss, H. Groiss, E. Kaufmann, G. Hesser, M. Boobert, G. Springholz, F. Schuffler, K. Koike, H. Horada, and M. Yano, Appl. Phys. Lett. 88, 192109 (2006).
R. Leitsmann, L. E. Ramos, F. Bechstedt, H. Groiss, F. Schaffler, W. Heiss, K. Koike, H. Harada, and M. Yano, New J. Phys. 8, 317 (2006).
S. Jin, C. Cai, B. Zhang, H. Wu, G. Bi, J. Si, and Y. Zhang, New J. Phys. 14, 113021 (2012).
H. Kawamura, in Proceedings of the International Summer School on Narrow Gap Semiconductors, Ed. by W. Zawadzki (Springer, Berlin, 1980), p. 470.
K. L. I. Kobayashi, Y. Kato, and K. F. Komatsubara, Prog. Cryst. Growth Charact. 1, 117 (1978).
M. Szot, L. Kowalczyk, E. Smajek, V. Domukhovski, L. Domagala, E. Lusakowska, B. Taliashvili, P. Dziawa, W. Knoff, M. Wiater, T. Wojtowicz, and T. Story, Acta Phys. Polon. A 114, 1391 (2008).
P. M. Amirtharaj, B. L. Bean, and S. Perkowitz, J. Opt. Soc. Am. 67, 939 (1977).
W. Theiß, The SCOUT through CAOS, Manual of the Windows Application SCOUT (1994).
W. Theiß, Surf. Sci. Rep. 29, 91 (1997).
S. Jin, C. Cai, G. Bi, B. Zhang, H. Wu, and Y. Zhang, Phys. Rev. B 87, 235315 (2013).
M. Baleva, L. Bozukov, and M. Momtchilova, J. Phys.: Condens. Matter 4, 4633 (1992).
M. Baleva, I. Ivanov, and M. Momtchilova, J. Phys.: Condens. Matter 4, 4645 (1992).
V. A. Volodin, M. P. Sinyukov, D. V. Shcheglov, A. V. Latyshev, and E. V. Fedosenko, Semiconductors 48, 173 (2014).
T. D. Krauss, F. W. Wise, and D. B. Tanner, Phys. Rev. Lett. 176, 1376 (1996).
R. B. Vasiliev, V. S. Vinogradov, S. G. Dorofeev, S. P. Kozyrev, I. V. Kucherenko, and N. N. Novikova, Phys. Solid State 49, 547 (2007).
G. Karczewski, M. Szot, S. Krot, L. Kowalczyk, S. Churnutdinow, L. W. S. Schreyeck, K. Brunner, C. Schumacher, and L. W. Molenkamp, Nanotechnology (2014, in press).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © N.N. Novikova, V.A. Yakovlev, I.V. Kucherenko, G. Karczewski, Yu.A. Aleshchenko, A.V. Muratov, T.N. Zavaritskaya, N.N. Melnik, 2015, published in Fizika i Tekhnika Poluprovodnikov, 2015, Vol. 49, No. 5, pp. 658–662.
Rights and permissions
About this article
Cite this article
Novikova, N.N., Yakovlev, V.A., Kucherenko, I.V. et al. Optical phonons in PbTe/CdTe multilayer heterostructures. Semiconductors 49, 644–648 (2015). https://doi.org/10.1134/S1063782615050176
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063782615050176