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Comparative Lattice‐Dynamical Study of the Raman Spectra of Monoclinic and Tetragonal Phases of Zirconia and Hafnia
Author(s) -
Quintard Pierre E.,
Barbéris Pierre,
Mirgorodsky Andrei P.,
MerleMéjean Thérèse
Publication year - 2002
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2002.tb00346.x
Subject(s) - monoclinic crystal system , tetragonal crystal system , hafnia , raman spectroscopy , cubic zirconia , materials science , crystallography , lattice (music) , spectral line , crystal structure , chemistry , physics , optics , metallurgy , ceramic , acoustics , astronomy
An interpretation of the Raman spectra of monoclinic ZrO 2 and monoclinic HfO 2 is made by analyzing the results of the zirconia–hafnia substitution jointly with a lattice dynamical treatment of both structures. The Raman spectra of tetragonal ZrO 2 and tetragonal HfO 2 are also interpreted. Emphasis is put on their relations to the spectrum of the parent cubic structure and on the position of the soft mode. The band assignment proposed earlier by other researchers is critically reconsidered.