文章基本信息

标题：Lattice Dynamics and Transport Properties of Multiferroic DyMn2O5
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作者：Javed Ahmad ; Syed Hamad Bukhari ; M. Tufiq Jamil 等
期刊名称：Advances in Condensed Matter Physics
印刷版ISSN：1687-8108
电子版ISSN：1687-8124
出版年度：2017
卷号：2017
DOI：10.1155/2017/5389573
出版社：Hindawi Publishing Corporation
摘要：We have investigated the optical and electrical properties of polycrystalline DyM synthesized by sol-gel method. Analysis of the reflectivity spectrum has led to the observation of 18 infrared (IR) active phonon modes out of 36 predicted ones. We discuss the results in terms of different phonon bands originated as a result of atomic vibrations. Moreover, the optical energy band gap of eV has been estimated from optical conductivity spectrum. The energy band gap and optical transitions were also determined from UV-visible absorption spectrum and band gap of eV was estimated. Moreover, DC electrical resistivity shows the p-type polaronic conduction above room temperature.