Microwave dielectric dispersion in RbD2PO4 crystals

作者: R. Mizeris , J. Grigas , L. A. Shuvalov , A. I. Baranov

DOI: 10.1080/07315178708200522

关键词: DebyeSoft modesRange (particle radiation)Phase transitionCondensed matter physicsOpticsDielectric dispersionMicrowaveFerroelectricityInorganic compoundMaterials science

摘要: Abstract The paper presents the results of investigation dielectric dispersion in RbD2PO4 vicinity low-temperature ferroelectric phase transition. It is shown that Debye type along b-axis frequency range 50 MHz to GHz caused by single relaxational soft mode which at Tc2=324 K softens 0.4 GHz. confirm quasi-one-dimensional nature and order-disorder

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