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Some aspects of raman scattering in Cd 3 As 2 single crystals
Author(s) -
Weszka J.,
Renucci M.,
Zwick A.
Publication year - 1986
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221330106
Subject(s) - tetragonal crystal system , raman scattering , raman spectroscopy , x ray raman scattering , scattering , phonon , materials science , single crystal , electron , condensed matter physics , molecular physics , atomic physics , chemistry , physics , optics , crystallography , crystal structure , quantum mechanics
Abstract Raman scattering measurements in the tetragonal Cd 3 As 2 single crystals are carried out at temperatures of 300 and 77 K. The spectra obtained are interpreted in terms of phonon‐electron and electron‐electron interactions. The features in the low‐frequency interval are due to contributions from phonon and single particle scattering. The electronic RS involving intra‐ and interband excitations is dominant at frequencies higher than 80 cm −1 . The resonant enhancement of the band at 300 cm −1 arises from the incident light frequency being in the vicinity of ∑ 1 – ∑ 4 .