Random copper/yttrium iron garnet composites with tunable negative electromagnetic parameters prepared by in situ synthesis

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 61155-61160 ◽  
Author(s):  
Kai Sun ◽  
Zi-dong Zhang ◽  
Run-hua Fan ◽  
Min Chen ◽  
Chuan-bing Cheng ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Yttrium Iron Garnet ◽  
In Situ Synthesis ◽  
Negative Permittivity ◽  
Synthesis Process ◽  
Yttrium Iron ◽  
Permittivity And Permeability ◽  
Frequency Regime ◽  
Iron Garnet

In this paper, the tunable negative permittivity and permeability of copper/yttrium iron garnet (Cu/YIG) composites, which were prepared by in situ synthesis process, were investigated in the radio frequency regime.

The negative permittivity behavior of carbon nanotubes/yttrium iron garnet composites in the radio frequency

2018 ◽  
Vol 213 ◽  
pp. 282-285
Author(s):  
Min Chen ◽  
Zhongyang Wang ◽  
Peitao Xie ◽  
Zidong Zhang ◽  
Laixue Pang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Radio Frequency ◽  
Yttrium Iron Garnet ◽  
Negative Permittivity ◽  
Yttrium Iron ◽  
Iron Garnet

Negative permittivity and permeability spectra of Cu/yttrium iron garnet hybrid granular composite materials in the microwave frequency range

2013 ◽  
Vol 103 (26) ◽  
pp. 261906 ◽  
Author(s):  
Takanori Tsutaoka ◽  
Koki Fukuyama ◽  
Hideaki Kinoshita ◽  
Teruhiro Kasagi ◽  
Shinichiro Yamamoto ◽  
...  
Keyword(s):  
Composite Materials ◽  
Yttrium Iron Garnet ◽  
Microwave Frequency ◽  
Negative Permittivity ◽  
Frequency Range ◽  
Yttrium Iron ◽  
Granular Composite ◽  
Permittivity And Permeability ◽  
Iron Garnet

Magneto-optical properties of yttrium iron garnet (YIG) thin films elaborated by radio frequency sputtering

2004 ◽  
Vol 284 ◽  
pp. 77-85 ◽  
Author(s):  
T. Boudiar ◽  
B. Payet-Gervy ◽  
M.-F. Blanc-Mignon ◽  
J.-J. Rousseau ◽  
M. Le Berre ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Radio Frequency ◽  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
Radio Frequency Sputtering ◽  
Iron Garnet

Tunable negative permittivity and magnetic performance of yttrium iron garnet/polypyrrole metacomposites at the RF frequency

2019 ◽  
Vol 7 (11) ◽  
pp. 3160-3167 ◽  
Author(s):  
Chuanbing Cheng ◽  
Runhua Fan ◽  
Guohua Fan ◽  
Hu Liu ◽  
Jiaoxia Zhang ◽  
...  
Keyword(s):  
Yttrium Iron Garnet ◽  
Negative Permittivity ◽  
Yttrium Iron ◽  
Magnetic Performance ◽  
Iron Garnet

Tunable negative permittivity and relaxation-type dispersion for permeability were evidenced in yttrium iron garnet/polypyrrole metacomposites.

Influence of La- and Al-Dopant Substitutions on Morphology and Magnetic Characteristics of High Temperature Yttrium Iron Garnet

2020 ◽  
Vol 981 ◽  
pp. 11-16
Author(s):  
Nurul Atiqah Mohd Pauzi ◽  
Rodziah Nazlan ◽  
Ismayadi Ismail
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Yttrium Iron Garnet ◽  
Density Measurement ◽  
Ferromagnetic Material ◽  
Synthesis Process ◽  
Magnetic Characteristics ◽  
Yttrium Iron ◽  
Oxide Mixture ◽  
Iron Garnet

The optimization of magnetic uses of magnetic garnet type ferrites is largely known depending on their microstructure, synthesis process and chemical composition of the materials. This research investigates the effect of dopants substitution on microstructure and magnetic properties of Yttrium Iron Garnet (YIG). The oxide-mixture route was employed in synthesizing the YIG powders using Aluminium and Lanthanum as dopants with concentration of 0.5 prior to sintering at 1400 °C. The samples were characterized in several testing applications in order to study the structural, microstructural, magnetic properties and density effects toward the samples workability as ferromagnetic materials. Characterization of the samples were carried out by using Transmission Electron Microscopy (TEM), Field Emission Scanning Electron Microscopy (FESEM), X-Ray Diffraction (XRD), Impedance/Materials Analyzer and density measurement. The results showed that La-doped YIG shows an incredible achievement as a new ferromagnetic material, meanwhile with the substitution of Aluminum ion would increase the magnetic response of YIG.

Magneto-optical properties of yttrium iron garnet (YIG) thin films elaborated by radio frequency sputtering

2004 ◽  
Author(s):  
Toufik Boudiar ◽  
Beatrice Payet-Gervy ◽  
Marie-Francoise Blanc-Mignon ◽  
Jean-Jacques Rousseau ◽  
Martine Le Berre ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Radio Frequency ◽  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
Radio Frequency Sputtering ◽  
Iron Garnet

Radio-frequency permeability and permittivity spectra of copper/yttrium iron garnet cermet prepared at low temperatures

2015 ◽  
Vol 35 (4) ◽  
pp. 1219-1225 ◽  
Author(s):  
Zhi-cheng Shi ◽  
Run-hua Fan ◽  
Xu-ai Wang ◽  
Zi-dong Zhang ◽  
Lei Qian ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Low Temperatures ◽  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
Iron Garnet

Analysis and lattice imaging of a transitional event on garnets

1978 ◽  
Vol 36 (1) ◽  
pp. 270-271
Author(s):  
J.Y. Laval
Keyword(s):  
Yttrium Iron Garnet ◽  
Reciprocal Lattice ◽  
Transitional Zone ◽  
Lattice Imaging ◽  
Yttrium Iron ◽  
X Ray ◽  
Ionic Process ◽  
The Matrix ◽  
High Resolution Technique ◽  
Iron Garnet

The exsolution of magnetite from a substituted Yttrium Iron Garnet, containing an iron excess may lead to a transitional event. This event is characterized hy the formation of a transitional zone at the center of which the magnetite nucleates (Fig.1). Since there is a contrast between the matrix and these zones and since selected area diffraction does not show any difference between those zones and the matrix in the reciprocal lattice, it is of interest to analyze the structure of the transitional zones.By using simultaneously different techniques in electron microscopy, (oscillating crystal method microdiffraction and X-ray microanalysis)one may resolve the ionic process corresponding to the transitional event and image this event subsequently by high resolution technique.

Antisite Defects in Yttrium Iron Garnet

1997 ◽  
Vol 07 (C1) ◽  
pp. C1-283-C1-286
Author(s):  
P. Novák ◽  
J. Englich ◽  
H. Stepánková ◽  
J. Kohout ◽  
H. Lütgemeier ◽  
...  
Keyword(s):  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
Antisite Defects ◽  
Iron Garnet
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