Results 171 to 180 of about 2,761 (198)

Cation substitutions in BaFe12O19

Journal of Physics and Chemistry of Solids, 1958
Abstract The variation in magnetic intensity of BaFe 12 O 19 was studied as a function of the substitution of ions such as Al III , Ga III , Cr III , and Zn II for Fe III . All the substituted ions, with the exception of Cr III , were nonmagnetic.
A.H. Mones, E. Banks
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Remanent Domain Structures of BaFe12O19

Journal of Applied Physics, 1965
In order to investigate the magnetizing process of uniaxial oxides, the remanent domain structure of a thin single crystal of BaFe12O19 was observed on the basal plane by means of Faraday effect. Three kinds of remanent domains—radial, maze, and honeycomb—were found, when the field was reduced to zero along the c axis from saturation.
H. Kojima, K. Gotō
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Raman study of BaFe12O19 thin films

Applied Physics Letters, 1998
We report on Raman spectra of BaFe12O19 thin films. These thin films have been deposited by injection chemical vapor deposition on three different substrates: Al2O3 (001), Gd3Ga5O12 (111), and Si (100). The observed Raman-active vibrations of the films are compared with recently published Raman spectra from bulk compounds.
J. Kreisel, S. Pignard, H. Vincent, J. P. Sénateur, G. Lucazeau   +4 more
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Mössbauer spectroscopy in As-substituted BaFe12O19

Applied Physics, 1973
Mossbauer measurements have been made in barium ferrite and in As-substituted barium ferrite. The data indicate that the As ions occupy preferentially the bipyramidal lattice site 2b.
E. Kreber, U. Gonser
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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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Charge transport mechanism in BaFe12O19 and BaFe11CoO19

Journal of Magnetism and Magnetic Materials, 2020
Abstract The conduction and charge transport mechanism of cobalt substituted barium hexaferrite (BaCoM) were studied by impendence spectroscopy at different temperatures and compared with BaM. Frequency dependent impedance spectra showed two distinct relaxations in BaM whereas a single relaxation peak was present in BaCoM.
Santhoshkumar Mahadevan, Puneet Sharma
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Nucleation effect in small BaFe12O19-particles

Journal of Magnetism and Magnetic Materials, 1983
Abstract The hysteresis behaviour of isolated micro-sized magnetic particles can be investigated using a vibrating reed magnetometer with a sensitivity of about 10 -9 Acm 2 . Measurements on several barium ferrite single-crystal particles (dimensions 4–50 μ m) show that the magnetization reversal process is initiated by nucleation of reversed ...
R.A. Schippan, K.A. Hempel
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Infrared reflection spectra of cooled BaFe12O19

Physica B: Condensed Matter, 1994
Abstract We studied Fourier reflection spectra of high quality single crystals of barium hexaferrite at 50 – 500 cm-1. Upon sample cooling up to the liquid nitrogen temperature there appeared excitations which were not observed at room temperature and some spectral components were shifted towards the higher frequencies.
A.V. Eremenko, Yu.G. Pashkevich, V.V. Pishko, V.V. Tsapenko   +3 more
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Multiferroic and magnetoelectronic polarizations in BaFe12O19 system

Journal of Alloys and Compounds, 2021
Abstract Coexistence of ferroelectricity and ferromagnetism in one single phase of a solid is of great interest because of the potential application for novel electronic devices. We report on the enhanced ferroelectricity jointly co-existing with excellent magnetic performance in M-type barium hexaferrite (BaFe12O19), which demonstrating a classic ...
Xue Li, Guo-Long Tan
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Remanent Torque Studies in Polycrystalline BaFe12O19

Journal of Applied Physics, 1962
Measurements of the anisotropy distribution in BaFe12O19 were carried out using the remanent torque technique. Two randomly oriented powder samples with coercive forces of 1500 and 4000 oe were tested. The remanent torque curves for both samples were essentially identical indicating an anisotropy distribution with an average of 2.1±0.2×106 ergs/cm3 ...
P. J. Flanders, S. Shtrikman
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