Raman Spectra of Ti<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, Mg<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, Zn<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, Fe<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, and Mn<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

1967939 citationsJournal Article

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Abstract

First-order Raman spectra have been measured at room temperature in five materials of the ${D}_{4h}$ point group: Ti${\mathrm{O}}_{2}$, Mg${\mathrm{F}}_{2}$, Zn${\mathrm{F}}_{2}$, Fe${\mathrm{F}}_{2}$ and Mn${\mathrm{F}}_{2}$. The experiments utilized an argon laser light source and photo-electric detection. The four Raman-active phonon frequencies, predicted by group theory to have symmetries ${A}_{1g}$, ${B}_{1g}$, ${B}_{2g}$, and ${E}_{g}$, were observed and classified in each material. Each spectrum exhibited strong lines of ${A}_{1g}$ and ${E}_{g}$ symmetries, a weak high-frequency line of ${B}_{2g}$ symmetry, and a very sharp ${B}_{1g}$ line at quite low frequency (less than 100 ${\mathrm{cm}}^{\ensuremath{-}1}$ in all the materials except Ti${\mathrm{O}}_{2}$).

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Photorefractive and Nonlinear Optics Glass properties and applications Luminescence Properties of Advanced Materials

Publication Details

Published in: Physical Review

Volume 154, Issue 2, pp. 522-526

DOI: 10.1103/physrev.154.522

Field-Weighted Citation Impact: 8.94

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