Raman Characterization of MBE-Grown Layered MnTe/CdTe Structures
W. Szuszkiewicza, M. Jouanneb, J.F. Morhangeb, M.A. Kanehisab, H. Mariettec, J.M. Hartmannc, E. Dynowskaa, G. Karczewskia, T. Wojtowicza, J. Kossuta and J. Barnaśd
aInstitute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland
bLaboratoire des Milieux Désordonnés et Hétérogènes, UPMC, Case 86, 4 place Jussieu, 75252 Paris, Cédex 05, France
cEquipe CEA-CNRS "Microstructures de Semiconducteurs II-VI" de l'Université J. Fourier et CEA/DRFMC, BP 87, 38054 Grenoble, France
dUnité Mixte de Physique CNRS-Thomson, Orsay, France
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Raman scattering measurements on (MnTe)8/(Cd0.64Zn0.36Te)8 multilayer grown by MBE method and on various (MnTe)n/(CdTe)12 multilayers (where n=8,12,16,24) were performed at low temperatures. In the z̅(x,x)z polarization, structures corresponding to folded acoustic phonons were found. In z̅(x,y)z polarization new complex structures were observed in the low-frequency part of Raman scattering spectra. A possible magnetic origin of these structures is discussed.
DOI: 10.12693/APhysPolA.92.1021
PACS numbers: 75.30.Ds, 75.70.Ak, 78.30.-j