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Effect of Metal Substitution in ZrS 3 and TiS 3 Compounds. Electronic, Raman, and Resonance Raman Study of Zr 1− x Ti x S 3 Ternary Phases, 0 < x < 1
Author(s) -
Gard P.,
Sourisseau C.,
Gorochov O.
Publication year - 1987
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.2221440249
Subject(s) - raman spectroscopy , raman scattering , resonance (particle physics) , x ray raman scattering , ternary operation , materials science , exciton , coherent anti stokes raman spectroscopy , molecular vibration , absorption (acoustics) , analytical chemistry (journal) , atomic physics , chemistry , condensed matter physics , optics , physics , computer science , composite material , programming language , chromatography
The effects of metal substitution on the electronic and vibrational properties of ZrS 3 and TiS 3 are studied through UV–visible absorption, Raman and resonance Raman scattering experiments on various Zr 1‐ x Ti x S 3 ternary phases, 0 < x < 1. All these broad band semiconductors display excitonic type transitions on their absorption edge whose maxima vary monotonously from 500.0 to 960.0 nm as the titanium content increases. These excitons consist of d‐like conduction electrons and the existence of higher‐energy transitions due to 3p*(SS) orbitals is confirmed by resonance Raman results in Zr 0.6 Ti 0.4 S 3 . The polarized Raman spectra of the solid solutions present variations in band‐wavenumbers as a function of the compositional parameter x and three different types of mode‐behavior are observed depending on the nature of the vibrations. All the Raman results are sustained on force field calculations in ZrS 3 and TiS 3 and on the estimations of short‐, medium‐, and long‐range interactions within each vibrational state.