Results 31 to 40 of about 12,293 (208)

Ga-, Y-, and Sc-substituted M-type ferrites for self-biasing circulators in LTCC microwave modules

AIP Advances, 2020
The partial substitution of Fe3+ by diamagnetic Me3+ in BaMexFe12-xO19 with Me = Ga and Y (0 ≤ x ≤ 2) was studied. Samples were synthesized by the mixed-oxide route and their properties were compared to BaScxFe12-xO19 ferrites.
Manuel Heidenreich, Xinyi Ma, Wanja Gitzel, Arne Jacob, Beate Capraro, Jörg Töpfer   +5 more
doaj   +1 more source

Obtaining Hexagonal Ferrites for Substrates Microstrip Microwave Devices of mm-Range of LTCC-technology [PDF]

Журнал нано- та електронної фізики, 2016
In the work by the method low temperature co-fired ceramics (LTCC) obtained samples of isotropic and anisotropic polycrystalline hexaferrite BaFe12O19 and SrFe12O19.
D.N. Chitanov, V.G. Kostishyn, L.V. Kozhitov, A.Yu. Adamtsov   +3 more
doaj   +1 more source

LTCC-technology for Producing Hexaferrites [PDF]

Журнал нано- та електронної фізики, 2016
In the review examined the possibility of using LTCC-technology for obtaining hexaferrites as reaction additives glasses Bi2O3-B2O3-SiO2-ZnO (BBSZ) and BaCu (B2O5) (BCB) to reduce the sintering temperature.
D.N. Chitanov, V.G. Kostishyn, L.V. Kozhitov, P.A. Ryapolov, A.Yu. Adamtsov   +4 more
doaj   +1 more source

Magneto-Electric Effects on Sr Z-type Hexaferrite at Room Temperature

, 2011
In this paper, magnetoelectric effects of Sr Z-type hexaferrite, Sr3Fe24Co2O41, at room temperature is measured. The change in remanence magnetization was measured by applying a DC voltage or electric field across a slab of hexaferrite.
Anton Geiler, Carmine Vittoria, Khabat Ebnabbasi, Vincent Harris, Vittoria C., Yajie Chen   +5 more
core   +1 more source

Magnetic Microstructure Aluminum-substituted Barium Hexaferrite for Microwave Devices mm-Wavelength Range [PDF]

Журнал нано- та електронної фізики, 2015
The magnetic structure and cationic distribution was investigate in ferrite with a hexagonal structure BaFe12 – хAlхO12 (х ≤ 2). It is found that when х = 2 Al3+ ions are localized mainly in the positions of 12k (а-sublattice) and 4f1 (с-sublattice ...
M.N. Shipko, V.V. Korovushkin, V.G. Kostishyn, N.D. Ursulyak, A.G. Nalogin, E.S. Savtchenko   +5 more
doaj  

Wide Bandwidth Microwave Absorbers of Ferrite-Rubber Composites with Square-Rod Structure

MATEC Web of Conferences, 2016
As one way of shape control for the wide bandwidth in microwave absorbers, a square-rod structure of ferrite composite is proposed. Microwave absorbance of the square-rod absorber is analyzed by the transmission line approximation which provides the ...
Kim Sung-Soo, Liu Tian
doaj   +1 more source

Crystal and magnetic structure of hexagonal anisotropic polycrystalline ferrites SrFe12O19 obtained by radiation-thermal sintering [PDF]

Modern Electronic Materials
Hexagonal anisotropic strontium ferrite has found wide application in the fabrication of permanent magnets, active media of UHF electronic devices, and photonics. The performance of hexagonal strontium ferrites depends largely on the synthesis technology.
Vladimir G. Kostishyn, Alex V. Trukhanov, Albert A. Alekseev, Sergey V. Scherbakov, Igor M. Isaev, Andrei Yu. Mironovich, Georgy A. Skorlupin, Maksim A. Sysoev, Georgy M. Tokin   +8 more
doaj   +3 more sources

Critical dynamics of ferromagnets [PDF]

, 1988
The crossover in the dynamics from isotropic to dipolar critical behaviour has been a matter of debate over many years. We review a mode coupling theory for dipolar ferromagnets which gives a unified explanation of the seemingly contradictory ...
Frey, Erwin, Schwabl, F.
core   +4 more sources

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

Advanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Investigation of magnetic and structural properties of copper substituted barium ferrite powder particles via co-precipitation method

Results in Physics, 2016
In this paper, it is proposed to synthesize copper-doped barium ferrite (BaCuxFe12−xO19) using co-precipitation technique at different ratios in order to increase the coercivity value which in turn increases the magnetic storage capacity of the copper ...
S. Vadivelan, N. Victor Jaya
doaj   +1 more source