Millimeter waveband dielectric properties of nanocomposite 3d and rare-earth titanates

2019 ◽  
Vol 14 ◽  
pp. 144-147
Author(s):  
A.B. Rinkevich ◽  
Ya.A. Pakhomov ◽  
D.V. Perov
Keyword(s):  
Rare Earth ◽  
Dielectric Properties ◽  
Millimeter Waveband

Influence of rare-earth doping on the structural and dielectric properties of orthoferrite La0.50R0.50FeO3 ceramics synthesized under high pressure

2020 ◽  
Vol 842 ◽  
pp. 155859 ◽  
Author(s):  
I.I. Makoed ◽  
N.A. Liedienov ◽  
A.V. Pashchenko ◽  
G.G. Levchenko ◽  
D.D. Tatarchuk ◽  
...  
Keyword(s):  
High Pressure ◽  
Rare Earth ◽  
Dielectric Properties ◽  
Rare Earth Doping

Effect of rare earth on dielectric properties of Mn contained unfilled tungsten bronze ceramics

2019 ◽  
Vol 30 (18) ◽  
pp. 17393-17404
Author(s):  
Shan Wu ◽  
Chaozhong Sun ◽  
Zhe Guo ◽  
Changzheng Hu ◽  
Laijun Liu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Dielectric Properties ◽  
Tungsten Bronze

Thermal and dielectric properties of rare earth iodates

1985 ◽  
Vol 20 (7) ◽  
pp. 2335-2344 ◽  
Author(s):  
B. P. Ghosh ◽  
K. Nag
Keyword(s):  
Rare Earth ◽  
Dielectric Properties

Microwave dielectric properties and applications of rare-earth aluminates

1999 ◽  
Vol 14 (1) ◽  
pp. 114-119 ◽  
Author(s):  
Seo-Yong Cho ◽  
In-Tae Kim ◽  
Kug Sun Hong
Keyword(s):  
Rare Earth ◽  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Microstrip Antennas ◽  
Substrate Material ◽  
Rhombohedral Structure ◽  
Quality Factors ◽  
Microwave Dielectric ◽  
Ionic Size ◽  
The Difference

Rare-earth aluminates, LnAlO3 (Ln = Dy, Er, Gd, La, Nd, Pr, Sm, and Y) were prepared using the mixed oxide method, and their microwave dielectric properties were examined at X-band. Most rare-earth aluminates have suitable permittivities and quality factors for applications as dielectric resonators, but a modification of τf is necessary due to the coefficient's large negative value. When considering dielectric properties and lattice matching, YalO3 rather than LaAlO3, was suggested as a promising substrate material for microstrip antennas utilizing high-temperature superconductor thin films. Rare-earth aluminates with a rhombohedral structure exhibited larger permittivities than those with an orthorhombic structure. This difference was attributed to the difference in ionic size and coordination number. It was demonstrated that a nonzero magnetic susceptibility of rare-earth aluminates has an adverse effect on their quality factor. An abrupt variation in the temperature coefficient of permittivity was discussed in terms of oxygen octrahedra tilting.

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