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Issue 15, 2002
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Raman spectroscopy of AMn2O4(A = Mn, Mg and Zn) spinels

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Abstract

First order Raman spectra in the region 200–800 cm−1 have been collected for AMn2O4 (A = Mn, Mg and Zn) tetragonal spinels. A possible correlation between Raman phonons and AO4 and MnO6 unit vibrations is proposed. Structural changes have been analyzed following the evolution of the Raman spectra with x for the Mg1−xMnxMn2O4 solid solution; the effect of the spinel inversion has been also studied on MgMn2O4 quenched samples from high temperatures. The results, taking into account also the X-ray diffraction and electron paramagnetic resonance data, show the influence of the Jahn–Teller effect on the Raman scattering for this class of materials.

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Publication details

The article was received on 10 Apr 2002, accepted on 28 May 2002 and first published on 20 Jun 2002


Article type: Paper
DOI: 10.1039/B203520K
Citation: Phys. Chem. Chem. Phys., 2002,4, 3876-3880
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    Raman spectroscopy of AMn2O4 (A = Mn, Mg and Zn) spinels

    L. Malavasi, P. Galinetto, M. C. Mozzati, C. B. Azzoni and G. Flor, Phys. Chem. Chem. Phys., 2002, 4, 3876
    DOI: 10.1039/B203520K

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