This a study of the optical transmission of [N(CH3)4]2ZnCl4 and [N(CH3)4]2CuCl4 crystals in the incommensurate phase when a defect density wave is present. It is found that an anomalous reduction in the transmission coefficient is caused by scattering of light owing to a realignment of the superstructure during transitions between metastable states. When a defect density wave is present, the anomalous optical transmission of the crystal is related to the scattering of light on superstructure inhomogeneities produced by a superposition of existing modulation waves.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 78, No. 2, pp. 248–253, March–April, 2011.
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Sveleba, S.A., Karpa, I.V., Katerynchuk, I.M. et al. Optical transmission coefficient of crystalline [N(CH3)4]2MeCl4 in the incommensurate phase. J Appl Spectrosc 78, 228–233 (2011). https://doi.org/10.1007/s10812-011-9451-8
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DOI: https://doi.org/10.1007/s10812-011-9451-8