Lattice vibrational characteristics, crystal structures and dielectric properties of non-stoichiometric Nd(1+)(Mg1/2Sn1/2)O3 ceramics

Cao, Zhikai; Xiao, En-Cai; Li, Xuehui; Yue, Zhenxing; Chen, Guohua; Chen, Ying; Song, Kexing; Zhou, Huanfu; Qi, Zeming; Shi, Feng

doi:10.1016/j.jmat.2020.02.012

Cited by 26 publications

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References 23 publications

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“…Nd(Mg 0.5-x Ni x Sn 0.5 )O 3 [487], Nd(Mg 0.5-x Zn x Sn 0.5 )O 3 [488], Nd(Mg 0.5 Sn 0.5-x Ti x )O 3 [489], Nd(Mg 0.5-x Ca x Sn 0.5 )O 3 [490], Nd [(Zn 1-x Co x ) 0.5 Ti 0.5 ]O 3 [491], Nd(Zn 0.5+x Ti 0.5 )O 3 [492], Nd (1+x) (Mg 1/2 Sn 1/2 )O 3 [493], Nd(Mg 0.5 Sn 0.5(1+x) )O 3 [494], La 1-x B x (Mg 0.5 Sn 0.5 )O 3 [495], La (1-x) Sm x (Mg 0.5 Sn 0.5 )O 3 [495], La 0.97 Sm 0.03 (Mg 0.5 Sn 0.5 )O 3 -Ca 0.8 Sr 0.2 TiO 3 [395], La 1-x Yb x (Mg 0.5 Sn 0.5 )O 3 [496], La(Mg 0.5-x Ba x Sn 0.5 )O 3 [497], Pr 0.22 Y 0.78 TiTaO 6 [498], La(Mg 0.4 Sr 0.1 Sn 0.5 )O 3 Nd(Co 0.5 Ti 0.5 )O 3 -Ca 0.8 Sr 0.2 TiO 3 [499,500], La(Mg 0.5-x Sr x Sn 0.5 )O 3 [501], Ca 0.6 La 0.267 TiO 3 -Ca(Sm 0.5 Nb 0.5 )O 3 [502], and La[Al 1-x (Mg 0.5 Ti 0.5 ) x ]O 3 [503] was investigated based on sintering behavior and microstructure. Not only the investigations reported the microwave dielectric properties, but also the structure-property relationship containing intrinsic loss, vibrational modes, and chemical bond characteristics of Y 2 MgTiO 6 was studied in detail, and the schematic representation of vibrational modes of Y site was presented in Fig.…”

Section: A 2 B′b″o 6 Formulamentioning

confidence: 99%

The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams

et al. 2021

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The explosive process of 5G communication evokes the urgent demand of miniaturized and integrated dielectric ceramics filter. It is a pressing need to advance the development of dielectric ceramics utilization of emerging technology to design new materials and understand the polarization mechanism. This review provides the summary of the study of microwave dielectric ceramics (MWDCs) sintered higher than 1000 from 2010 up to now, °C with the purpose of taking a broad and historical view of these ceramics and illustrating research directions. To date, researchers endeavor to explain the structure-property relationship of ceramics with multitude of approaches and design a new formula or strategy to obtain excellent microwave dielectric properties. There are variety of factors that impact the permittivity, dielectric loss, and temperature stability of dielectric materials, covering intrinsic and extrinsic factors. Many of these factors are often intertwined, which can complicate new dielectric material discovery and the mechanism investigation. Because of the various ceramics systems, pseudo phase diagram was used to classify the dielectric materials based on the composition. In this review, the ceramics were firstly divided into ternary systems, and then brief description of the experimental probes and complementary theoretical methods that have been used to discern the intrinsic polarization mechanisms and the origin of intrinsic loss was mentioned. Finally, some perspectives on the future outlook for high-temperature MWDCs were offered based on the synthesis method, characterization techniques, and significant theory developments.

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Section: A 2 B′b″o 6 Formulamentioning

confidence: 99%

The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams

et al. 2021

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“…In our group, Zhang et al 17 . and Cao et al 18 have combined the phonon modes to establish the structure-property relationship of the non-stoichiometric Nd(Mg 0.5(1+x) Sn 0.5 )O 3 and Nd (1+x) (Mg 0.5 Sn 0.5 )O 3 ceramics with the change of Mg 2+ content on the B'-site and Nd 3+ content on the A-site, respectively. However, quadrivalent Sn 4+ ions, located on the B''-site in Nd(Mg 0.5 Sn 0.5 )O 3 samples, are different from bivalent Mg 2+ ions and trivalent Nd 3+ ions in terms of atomic structures and physical properties, which also have great influence on their correlations of structures-properties and also affect their lattice vibrational characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the reliability of the 4-P model fitting results was confirmed by Kramers-Krönig (K-K) interactive conversion relations, and the influence of the lattice vibration on the dielectric response was evaluated. Finally, the structure-property correlations were established using Raman active phonon modes as a media so as to contribute to the design of new-type MWDCs from the perspective of material science as a furthers study basen on the previous results 17,18 . which were first mixed in a polyethylene tank for 6 h, then dried in electric blast drying oven, and calcined at 1200 °C for 4 hours.…”

Section: Introductionmentioning

confidence: 99%

Lattice vibrational characteristics and structures-properties relationships of non-stoichiometric Nd[Mg0.5Sn0.5(1+x)]O3 ceramics

et al. 2020

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Non-stoichiometric Nd[Mg 0.5 Sn 0.5(1+x) ]O 3 (-0.04 ≤ x ≤ +0.04)-type samples were prepared using a traditional two-step solid-state sintering process. Their crystal structures, phase compositions, dielectric properties and lattice vibrational characteristics were identified in detail. Double perovskite Nd(Mg 0.5 Sn 0.5)O 3 with a monoclinic structure was distinguished as the main crystalline phase, pure phase was obtained when x < 0, and the sample [Nd(Mg 0.5 Sn 0.49)O 3 ] at x =-0.02 shows the excellent dielectric properties: ε r = 18.74, Q × f = 47,979 GHz. Lattice vibrational characteristics were clarified with Raman and infrared active modes assigned and illuminated, accurately. The intrinsic properties were fitted by four-parameter semi-quantum model, which show that the low-frequency infrared modes yield a more significant contribution to permittivity and dielectric loss. Raman shifts of modes F 2g (A) and F 2g (B) correlate with dielectric constants negatively, which implies that the bond length has a positive correlation with permittivity. Full widths at half maximum of vibritional modes A 1g (O) correlate with dielectric loss values positively and correlate with the degree of order (S) negatively.

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Phase composition, microstructure, and microwave dielectric properties of Nd[(Zn0.925Co0.075)1/2Ti1/2]O3 derived from glycine–nitrate combustion method

Wang

Li²,

Guo³

et al. 2022

Appl. Phys. A

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Lattice vibrational characteristics, crystal structures and dielectric properties of non-stoichiometric Nd(1+)(Mg1/2Sn1/2)O3 ceramics

Cited by 26 publications

References 23 publications

The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams

The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams

Lattice vibrational characteristics and structures-properties relationships of non-stoichiometric Nd[Mg0.5Sn0.5(1+x)]O3 ceramics

Phase composition, microstructure, and microwave dielectric properties of Nd[(Zn0.925Co0.075)1/2Ti1/2]O3 derived from glycine–nitrate combustion method

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