Results 171 to 180 of about 285,357 (258)

Hexagonal Ferrite Isolators

Journal of Applied Physics, 1964
Waveguide bandwidth isolators requiring virtually no externally applied magnetic field have been developed for the millimeter wave frequency range. These ferrimagnetic resonance-type devices utilize highly anisotropic uniaxial hexagonal ferrites. The specific ferrite compounds used are from the two families BaO·2NiO·ΔAl2O3 · (8-Δ) Fe2O3 and SrO·δAl2O3·
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Multiferroid properties of hexagonal barium ferrites

Russian Journal of Inorganic Chemistry, 2016
Samples of BaFe12O19 with high multiferroid properties at room temperature (maximum polarization P m = 48.0–9.5 μQ/cm2, residual polarization P r = 28.0–29.5 μQ/cm2, and electric coercive field Е c = 115–120 kV/m) have been obtained for the first time using ...
V. G. Kostishin, A. V. Timofeev, A. N. Kovalev   +2 more
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Morphological features of hexagonal ferrites

Materials Research Bulletin, 1967
Abstract Depression growth spirals and vicinal-hill type spirals have been discovered on basal faces of single crystal hexagonal ferrite samples. Electron microscopy studies have resolved sub-unit-cell etch steps on “process etched” and on HCl etched surfaces.
Charles F. Cook, William F. Nye
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Aligned Co2Z Hexagonal Ferrite Fibers

Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT), 2013
The hexagonal ferrites, also know as hexaferrites, have become massively important materials commercially and technologically, accounting for the bulk of the total magnetic materials manufactured globally, and they have a multitude of uses and applications. They all have a magnetocrystalline anisotropy; that is the induced magnetization has a preferred
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Hexagonal ferrites for bubble domain devices

Materials Research Bulletin, 1970
Abstract Large crystals of aluminum substituted magneto-plumbite have been grown from a PbO·PbF 2 ·B 2 O 3 flux. Such materials may be used in bubble domain logic and memory devices. Quality is good for crystals grown with the c-axis horizontal at the bottom of the container while employing a negative vertical temperature gradient.
L.G. Van Uitert, D.H. Smith, W.A. Bonner, W.H. Grodkiewicz, G.J. Zydzik   +4 more
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Hexagonal strontium ferrite: cationic dye adsorption and antibacterial activity

Separation Science and Technology, 2020
Hexagonal strontium ferrite (SrFe12O19) powder was synthesized using sonochemical method and characterized. SrFe12O19 was used to adsorb malachite green (MG), a cationic dye, at various physical parameters and investigated against antibacterial activity.
J. Sahoo, Monidipa Konar, Juhi Rath, Devendra Kumar, H. Sahoo   +4 more
semanticscholar   +1 more source

Millimeter Resonance Isolators Utilizing Hexagonal Ferrites

IEEE Transactions on Microwave Theory and Techniques, 1963
Ferrimagnetic resonance isolators operating over waveguide bandwidths have been developed in K, V and Q bands using hexagonal ferrites. Preliminary results on similar isolators operating in M and W bands have also been obtained. The materials employed in these isolators are highly anisotropic uniaxial hexagonal compounds.
D.R. Taft, G.R. Harrison, L.R. Hodges
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Liquid phase epitaxy of hexagonal ferrites

Materials Research Bulletin, 1975
Abstract Single crystal films of the hexagonal ferrite Zn 2 Y, having the chemical formula Ba 2 Zn 2 Fe 12 O 22 , were grown by the isothermal dipping method of liquid phase epitaxy using a PbOBaOB 2 O 3 flux. The substrates were flux-grown M-type hexagonal ferrite crystals having the chemical formula BaFe 12 O 19 .
F.S. Stearns, H.L. Glass
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Lithium insertion into hexagonal ferrites: BaFe12O19

Materials Research Bulletin, 1988
Abstract The electrochemical insertion of lithium in the M-type ferrite with formula BaFe 12 O 19 has been investigated. The galvanostatic discharge curves of the (−)Li/electrolyte/Li x BaFe 12 O 19 (+) cell show a quasi-linear voltage decrease from 3.1 V vs. Li Li + at x=0 to about 1.0 V vs.
L Peraldo Bicelli, S Maffi, P Tagliavini, F Leccabue, N Suarez Almodovar, G Leo   +5 more
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Multiferroic and Magnetoelectric Hexagonal Ferrites

2014
The hexagonal ferrites, also known as hexaferrites, have become massively important materials commercially and technologically, accounting for the bulk of the total magnetic materials manufactured globally, and they have a multitude of uses and applications.
openaire   +1 more source