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Lattice vibrational characteristics, crystal structures and dielectric properties of non-stoichiometric Nd(1+x)(Mg1/2Sn1/2)O-3 ceramics
Cao, ZK; Xiao, EC; Li, XH; Yue, ZX; Chen, GH; Chen, Y; Song, KX; Zhou, HF; Qi, ZM; Shi, F
2020-09-01
Source PublicationJOURNAL OF MATERIOMICS
ISSN2352-8478
Issue3Pages:476
SubtypeArticle
AbstractNon-stoichiometric Nd(1+x)(Mg1/2Sn1/2)O-3 (-0.04 = x <= 0.04, NMS) ceramics were fabricated via a conventional solid-state reaction method. Crystal structures and morphologies were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The main crystalline phase is monoclinic Nd(Mg1/2Sn1/2)O-3 with a double perovskite structure (P2(1)/n space group) for the NMS system proved by XRD. The sample at x = 0.01 has the best crystallinity and evenly distributed crystal grains observed by SEM. The optimum performances (epsilon(r) = 19.87, Qxf = 41840 GHz, f = 12.05 GHz) are obtained at x = 0.01. Lattice vibrational modes of the Raman spectra were assigned and illustrated, in detail. The dielectric properties obtained by fitting infrared reflectance spectra with the help of four-parameter semi-quantum model are consistent with the calculated values by microscopic polarization and damping coefficients. The reverse translational vibration of the Nd-MgO6, the F-5u((5)) mode, provides the greatest contribution to the dielectric response. The relationships between crystal structures and dielectric properties were mainly established using lattice vibrational modes as a media. (C) 2020 The Chinese Ceramic Society. Production and hosting by Elsevier B.V.
DOI10.1016/j.jmat.2020.02.012
WOS KeywordINTRINSIC-PROPERTIES ; PHONON CHARACTERISTICS ; SPECTROSCOPY ; TEMPERATURE ; TIME
Language英语
WOS Research AreaChemistry ; Materials Science ; Physics
PublisherELSEVIER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27798
Collection中国科学院上海硅酸盐研究所
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GB/T 7714
Cao, ZK,Xiao, EC,Li, XH,et al. Lattice vibrational characteristics, crystal structures and dielectric properties of non-stoichiometric Nd(1+x)(Mg1/2Sn1/2)O-3 ceramics[J]. JOURNAL OF MATERIOMICS,2020(3):476.
APA Cao, ZK.,Xiao, EC.,Li, XH.,Yue, ZX.,Chen, GH.,...&Shi, F.(2020).Lattice vibrational characteristics, crystal structures and dielectric properties of non-stoichiometric Nd(1+x)(Mg1/2Sn1/2)O-3 ceramics.JOURNAL OF MATERIOMICS(3),476.
MLA Cao, ZK,et al."Lattice vibrational characteristics, crystal structures and dielectric properties of non-stoichiometric Nd(1+x)(Mg1/2Sn1/2)O-3 ceramics".JOURNAL OF MATERIOMICS .3(2020):476.
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