Open AccessКомбинационное рассеяние света в эвтектическом композите InSb-MnSb
Author(s) -
И.Х. Мамедов,
Д.Г. Араслы,
Р.Н. Рагимов,
А.А. Халилова
Publication year - 2020
Publication title -
fizika i tehnika poluprovodnikov
Language(s) - English
Resource type - Journals
eISSN - 1726-7315
pISSN - 0015-3222
DOI - 10.21883/ftp.2020.04.49137.9315
Subject(s) - raman spectroscopy , raman scattering , eutectic system , spectral line , analytical chemistry (journal) , phonon , materials science , frequency shift , composite number , evaporation , condensed matter physics , chemistry , crystallography , optics , physics , thermodynamics , composite material , microstructure , chromatography , astronomy
Raman spectra of bulk samples of the InSb-MnSb eutectic composite and their thin films prepared by the flash evaporation method have been studied. In the Raman spectra observed TO and LO modes at frequencies of 179.5 cm-1 and 192.4 cm-1 correspond to InSb compound and also the peaks at frequencies 122 cm-1, 127 cm-1, 167 cm-1, 211 cm-1, 245.5 cm-1 correspond to theoretical data for MnSb as is well known from literature. The TO mode in the Raman spectra for films is shifted toward lower energies (178 cm-1), but the LO mode is higher (196 cm-1). The high-frequency shift of the LO mode in the composite with compared its value for InSb is probably due to the presence of deformation at the matrix-inclusion interface, as well as the contribution by surface phonons scattering.