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Infrared reflectivity of BaMnF4

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Czechoslovak Journal of Physics B Aims and scope

Abstract

The polarized reflectivity of BaMnF4 single crystals was measured in the 20–600 cm−1 range for temperatures from 10 to 300 K. The results were evaluated using Kramers-Kronig analysis to obtain the dielectric function. The number of active modes in the high temperature polar phase (T>T i ≃250K) is in agreement with group-theoretical expectation. In the incommensurate phaseT<T i the number of active modes increases more than two times. All the results are in reasonable agreement with previous Raman and far infrared data.

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Authors and Affiliations

  1. Institute of Physics, Czechosl. Acad. Sci., Na Slovance 2, 180 40, Praha 8, Czechoslovakia

    S. Kamba, J. Petzelt & V. Zelezný

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  1. S. Kamba
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  2. J. Petzelt
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  3. V. Zelezný
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Kamba, S., Petzelt, J. & Zelezný, V. Infrared reflectivity of BaMnF4 . Czech J Phys 36, 848–854 (1986). https://doi.org/10.1007/BF01598334

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  • DOI: https://doi.org/10.1007/BF01598334

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