Journal ArticleDOI
Lattice vibration spectra. LIX. Single crystal infrared and Raman studies of spinel type oxides
TLDR
In this paper, the infrared reflection and Raman spectra of spinel type oxides M Cr 2 O 4 (Mg, Mn, Fe, Co, Ni, Cu, Zn) including Kramers-Kronig analyses and oscillator-fit calculations are presented.About:
This article is published in Journal of Solid State Chemistry.The article was published on 1991-01-01. It has received 128 citations till now. The article focuses on the topics: Raman spectroscopy & Spinel.read more
Citations
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Lattice vibrations of manganese oxides. Part I. Periodic structures.
TL;DR: Structural trends are deduced from the comparison of the vibrational spectra of the MDO phases investigated: birnessite, bixbyite, coronadite, groutite, hausmannite, hollandite, manganosite, pyrolusite, ramsdellite, romanechite, spinel, and todorokite.
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Rapid Synthesis of Li4Ti5O12 Microspheres as Anode Materials and Its Binder Effect for Lithium-Ion Battery
TL;DR: Li4Ti5O12 microspheres composed of nanoflakes were synthesized within 1 h by a combination of a microwave-assisted hydrothermal method and a microwave postannealing process.
Journal ArticleDOI
Chemical and Electrochemical Li-Insertion into the Li4Ti5O12 Spinel
Laurent Aldon,Pierre Kubiak,M. Womes,Jean Claude Jumas,Josette Olivier-Fourcade,José L. Tirado,Juan I. Corredor,C. Pérez Vicente +7 more
TL;DR: In this paper, the results of the chemical and electrochemical insertion of lithium ions into the spinel Li4Ti5O12 have been analyzed using 6,7Li NMR, Raman spectroscopy, and X-ray diffraction.
Journal ArticleDOI
Raman Spectra and Vibrational Analysis of BaFe12O19Hexagonal Ferrite
TL;DR: In this paper, the first Raman spectra of barium hexaferrite, BaFe 12 O 19, were analyzed on the basis of D 6 h factor group selection rules.
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The infrared dielectric properties of maghemite, γ-Fe 2 O 3 , from reflectance measurement on pressed powders
TL;DR: In this article, the infrared complex permittivity functions of three varieties of maghemite, γ-Fe2O3, having different degrees of vacancy ordering, were determined from their IR reflectance spectra, measured at near to normal incidence on pressed powder pellets.
References
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Infrared Spectra of Ferrites
TL;DR: In this article, the infrared spectra of 7 ferrites of the formula $M{\mathrm{Fe}}{2}{\mathrm {O}}_{4}, where $M$ designates a divalent metal, are presented and analyzed.
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Raman Effect in Zinc Oxide
TL;DR: In this paper, the frequency and symmetry character of the fundamental modes of the Raman effect in zinc oxide has been determined using the continuous helium-neon and ionized argon lasers as sources.
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Interpretation of the vibrational spectra of spinels
William B. White,B.A. DeAngelis +1 more
TL;DR: In this article, the vibrational spectrum of the spinel structure is treated by a factor group analysis and four IR active and five Raman active bands are predicted in agreement with observation.
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Infrared studies of spinels—III. The normal II-III spinels
J. Preudhomme,Pierre Tarte +1 more
TL;DR: In this article, a set of band assignments for normal II-III spinels is proposed, which are based on the chemical properties of the octahedral, trivalent cation.
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Thermodynamics of formation of simple spinels
Alexandra Navrotsky,O.J. Kleppa +1 more
TL;DR: The enthalpies of spinels were determined by solution calorimetry in molten oxide solvents at 970°K as discussed by the authors, where the enthalpy data were combined with free energy data from the literature to calculate entropies of formation.