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Vibrational spectrum of Li2B4O7 crystals

  • Solid-State Spectroscopy
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Abstract

Polarized IR reflection spectra of Li2B4O7 crystals are studied in a spectral range of 80–1600 cm−1 and compared with their Raman spectra. Based on the results of the dispersion analysis of the spectra, the frequencies, damping constants, and oscillator strengths of all vibrations are determined. The inversion of frequencies of the longitudinal and transverse vibrations of the A 1 and E symmetry in a range of 900–1150 cm−1 is found. Based on the data thus obtained, the effective charges are calculated and the types of chemical bonds are analyzed for structural groups of the Li2B4O7 crystal.

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Authors and Affiliations

  1. Dnepropetrovsk State University, Dnepropetrovsk, 49050, Ukraine

    A. V. Vdovin, V. N. Moiseenko & Ya. V. Burak

Authors
  1. A. V. Vdovin
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  2. V. N. Moiseenko
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  3. Ya. V. Burak
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Translated from Optika i Spektroskopiya, Vol. 90, No. 4, 2001, pp. 625–631.

Original Russian Text Copyright © 2001 by Vdovin, Moiseenko, Burak.

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Vdovin, A.V., Moiseenko, V.N. & Burak, Y.V. Vibrational spectrum of Li2B4O7 crystals. Opt. Spectrosc. 90, 555–560 (2001). https://doi.org/10.1134/1.1366750

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  • DOI: https://doi.org/10.1134/1.1366750

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