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IEEE Translation Journal on Magnetics in Japan

Issue 9 • Dec. 1985

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Displaying Results 1 - 25 of 54
  • [Front cover]

    Publication Year: 1985, Page(s): c1
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    Freely Available from IEEE
  • Table of contents

    Publication Year: 1985, Page(s):1029 - 1030
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    Freely Available from IEEE
  • Liquid Phase Epitaxial Growth of Thick Magneto-Optic Garnet Films

    Publication Year: 1985, Page(s):1031 - 1036
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    Growth and characterization of thick liquid phase epitaxial films of magneto-optic garnets are reviewed. In preparing thick epitaxial garnet films, it is important to make full use of the merits of epitaxial growth, and to minimize the drawbacks due to "bulk-like" behavior during thick film growth, such as morphological changes followed by flux inclusion. The primary phase region of the garnet sho... View full abstract»

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  • Magneto-optical Branching Waveguides and Their Application to Nonreciprocal Optical Devices

    Publication Year: 1985, Page(s):1037 - 1043
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    The branching waveguide principle underlyring guided-wave devices is described, and an application to nonreciprocal devices is discussed. Branching waveguides are classified into two types: a symmetric type operating as a power divider, and an asymmetric mode-splitter type. A 3-dB coupler and hybrid coupler are provided with these branching waveguides. The authors indicate a possible construction ... View full abstract»

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  • The Problems in the Development of Magneto-Optical Devices

    Publication Year: 1985, Page(s):1044 - 1055
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1464 KB)

    The problems to be solved in the development of future magneto-optical devices are described. Iron garnets, especially bismuth substituted iron garnets, are promising for magneto-optical materials in the 0.8 μm and 1.l-1.6 μm wavelength ranges. However, further improvement of the figure of merit and crystal growth technique is fundamental to realizing high-quality, compact and low-... View full abstract»

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  • Generation and Detection of Magnetoelastic Waves in Magnetic Thin Films Using Planar Coils

    Publication Year: 1985, Page(s):1056 - 1057
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    While many magnetoelastic wave (MEW) devices employ piezoelectric methods for wave generation, the authors demonstrate the feasibility of generating and detecting MEWs using a pair of planar coils. An Fe-Si-B magnetic film sputtered onto glass was used; waves were found to propagate in both the magnetic film and the glass. For the film with an MEW velocity of 5 × 103 km/s and coil pitc... View full abstract»

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  • Measurement of Magnetoelastic Effect for Isotropic Thick Alloy Films

    Publication Year: 1985, Page(s):1058 - 1059
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (193 KB)

    While there are numerous reports on the magnetoelastic (magnetostrictive) effect in uniaxially anisotropic soft magnetic films, no such studies have been reported for isotropic films. A strain gauge and B-H meter were used to determine the anisotropy fields ΔHk induced by uniaxial strain e in an isotropic Fe-Si-Al film, and from this found the strain sensitivity η. The v... View full abstract»

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  • Magnetic Characteristics in Atomically Order-Disordered Ni3Fe Alloys

    Publication Year: 1985, Page(s):1060 - 1062
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (278 KB)

    To investigate the magnetic properties of Ni-Fe system alloys in varying states of atomic disorder, samples with compositions near that of Ni3Fe were either cooled slowly or were quenched from various temperatures, and the maximum permeability in the [111], [110], and [100] directions measured. The results for fully ordered samples and samples quenched from 560°C in all three direction... View full abstract»

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  • Measurement of Anisotropic Magnetoresistance in Fe-Co-Ni Based Amorphous Alloys

    Publication Year: 1985, Page(s):1063 - 1064
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (185 KB)

    To study the anisotropic magnetoresistance, (A1-xBx)77Si10B13 and (A1-xBx)90Zr10 (A, B = Cr, Mn, Fe, Co, and Ni) amorphous alloys were prepared, their resistivities in directions parallel and perpendicular to an applied magnetic field were measured, and the ferromagnetic anisotropy of resistivity (FA... View full abstract»

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  • Measurement of Anisotropic Magnetoresistance in Fe,Co,Ni-Based Crystalline Alloys

    Publication Year: 1985, Page(s):1065 - 1066
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (173 KB)

    Measured results for the ferromagnetic anisotropy of resistivity (FAR in Fe-Co-Ni and Co-Ni-transition metal crystalline alloys are reported. The FAR of Fe-Co-Ni alloys was found to exhibit a peak at the saturated magnetic moment ηB of 0.8 to 1.0, differing from the behavior for amorphous material, and the largest FAR value was obtained for Co0.3Ni0.7 alloy... View full abstract»

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  • Property Changes of Fe-N Prepared by Reduction-Sintering Method with Quenching

    Publication Year: 1985, Page(s):1067 - 1068
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (221 KB)

    A process of reduction from α-Fe2O3, nitrification in ammonia and sintering was used to obtain dense single-phase Fe4N, and changes in the material thus obtained with quenching were investigated. It was found that quenching from temperatures of 550°C and above brings about a slight decrease in saturation magnetization, due to intermixing of hexagonal i... View full abstract»

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  • Magnetic Properties of Transition Metal Nitride--Synthesis of Iron Nitride by High-Dose Nitrogen Ion Implantation--

    Publication Year: 1985, Page(s):1069 - 1070
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (259 KB)

    Nitrogen ions (N2+) were implanted into pure iron films in an attempt to produce Fe16N2 and other iron nitride phases. Ions were implanted at 150 keV and dosages were ranged from 2 × 1016 to 2.11 × 1017 ions/cm2, and magnetization measurements and X-ray diffraction studies performed. Ferromagnetic Fe3... View full abstract»

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  • Spatial Resolution Improvement of Spin-Polarized Scanning Electron Microscope

    Publication Year: 1985, Page(s):1071 - 1073
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (659 KB)

    A previously developed method of magnetic domain observation which relies on detection of the spin polariization of secondary electrons emitted from the sample surface during scanning with a primary electron beam, and on converting the spin polarization into an image signal, has been further developed. Specifically, the efficiency of the spin detector used was raised, and an electron gun with a na... View full abstract»

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  • Magnetostatic Energy of Magnetostatically Coupled Film Edges

    Publication Year: 1985, Page(s):1074 - 1076
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    Previous analyses based on energy considerations of the magnetization distribution in the curling region of a single-layer magnetic film are extended to the case for a double-layer film with magnetostatic coupling. The dependence of total magneto- static energy on gap a uniform both length G assuming magnetization distribution and a curling state were compared. From this, the magnetization distrib... View full abstract»

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  • Analysis of Magnetization Distribution in Magnetic Film Edge

    Publication Year: 1985, Page(s):1077 - 1079
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (302 KB)

    To analyze the magnetostatic energy near the edge of a magnetic thin film under an external field Ho, a parabolic function was assumed to describe the magnetization distribution in the edge region. The result was then used in minimizing the total energy to analyze the curling state near the film edge. It was found that for low applied fields, the magnetic moments near the edge are align... View full abstract»

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  • Analysis of Magnetostriction on External Load by Finite Element Method

    Publication Year: 1985, Page(s):1080 - 1081
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (233 KB)

    To better understand vibration phenomena in transformers, analysis of magnetostriction in stressed materials was conducted using the finite element method. Starting with functionals for the total elastic and magnetic field energies, a one-dimensional approximating expression for the magnetostriction was derived, using experimental values for the magnetostriction-flux density curve in the unstresse... View full abstract»

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  • Effect of Dimensions on Power Losses in Mn-Zn Ferrite Cores

    Publication Year: 1985, Page(s):1082 - 1084
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    Two types of Mn-Zn ferrite cores-high-permeability samples with low hysteresis losses, and converter materials with good high-frequency characteristics but large hysteresis losses-were immersed in acid to gradually reduce their external dimensions, and the resulting change in large-amplitude losses and small-signal characteristics was measured. The core loss per cycle was lowered with reduction in... View full abstract»

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  • Magneto-Optical Effect in Magnetic Fluid

    Publication Year: 1985, Page(s):1085 - 1086
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    To explore the possibilities of applying films of magnetic fluid in optical devices, birefringence in a magnetic colloid film was studied by measuring the maximum and minimum intensities of transmitted coherent light polarized in directions parallel and perpendicular to an applied magnetic field, the strength of which was varied. From the results, the dependence of phase shifts of orthogonal elect... View full abstract»

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  • Magnetization Process of Magnetic Fluid

    Publication Year: 1985, Page(s):1087 - 1089
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (299 KB)

    The magnetization curves of magnetic fluids in liquid and frozen states, together with magnetic field cooling effects and particle concentration dependences, are reported. Fluids were frozen in liquid nitrogen under a 3.6 kOe field, and magnetization curves measured as a function of the angle Q (= 0, 45, 90°) between the field during freezing and the measuring field. When diluted in the liquid st... View full abstract»

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  • Torque Magnetometer Using A Superconducting Magnet

    Publication Year: 1985, Page(s):1090 - 1091
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    A torque magnetometer developed for use with a 100 kOe superconducting magnet is described. Torques exerted on the sample are transferred to a strain gauge-transducer, the change in resistance detected by a bridge, converted to a digital signal and recorded. This setup allows the bulk of the torque magnetometer mechanism to be located a distance from the sample, thereby facilitating use of a super... View full abstract»

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  • Substitution of Mn for Cr in Crystalline and Amorphous CrrGe

    Publication Year: 1985, Page(s):1092 - 1094
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (253 KB)

    The substitution of Mn for Cr in crystalline CrGe compounds can change the magnetic characteristics from paramagnetic to ferromagnetic to spin glass, but the same substitution in amorphous CrGe causes a change from paramagnetic to spin glass with no discernable ferromagnetic phase. This difference is believed to be due to the difference in the magnetic polarization of Mn. The freezing temperature ... View full abstract»

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  • Magnetic Properties of Insoluble Binary System Thin Film

    Publication Year: 1985, Page(s):1095 - 1096
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (229 KB)

    Annealing insoluble binary system thin films containing Fe in a magnetic field at temperatures of 200°C or more, causes a sharp increase in coercive force and saturation magnetization. X-ray diffraction of the annealed samples revealed large peaks, which grew larger at increased temperatures, but no such peaks were observed in the control group indicating the rapid formation of Fe clusters. The a... View full abstract»

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  • Thermal Stability of Nonequilibrium Fe-Ag and Fe-Cu Alloys Produced by Vapor Quenching

    Publication Year: 1985, Page(s):1097 - 1098
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (210 KB)

    X-ray diffraction and Mössbauer effect measurements were carried out for sputtered fcc Fe-Ag and Fe-Cu alloys after being annealed at various temperatures. At temperatures higher than 300°C, the metastable fcc phase decomposes by removing supersaturated Fe atoms. In the fcc Fe-Ag alloys, Fe atoms always give a ferromagnetic hyperfine field component during the clustering process. On the ... View full abstract»

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  • Magnetic Properties of Fe-Zn Alloys Produced by Vapor Quenching

    Publication Year: 1985, Page(s):1099 - 1100
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (188 KB)

    X-ray diffraction, magnetization and Mössbauer effect have been measured for vapor quenched Fe-Zn alloys. The single bcc alloys are obtained for the Zn concentration between 0 and 60 at%. They are ferromagnetic at room temperature and their magnetic moment decreases with the increase in Zn concentration, slightly deviating upwards from the simple dilution law. The broad resonance line of Mössbau... View full abstract»

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  • Magnetic Properties of Fe-Ce Amorphous Alloys

    Publication Year: 1985, Page(s):1101 - 1102
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    Crystalline Ce alloys often exhibit properties which are different from other rare-earth alloys. We wanted to know if a similar tendency was present in amorphous phase Ce alloys. The magnetic properties of such alloys were compared with the results of other rare-earth alloys. The concentration dependence of the Curie temperature of Fe-Ce alloys is similar to that of Fe-Zr and Fe-Ti amorphous alloy... View full abstract»

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Aims & Scope

IEEE Translation Journal on Magnetics in Japan is a publication of the IEEE Magnetics Society published between 1985 and 1994.

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Meet Our Editors

Editor-in-Chief
James E. Opfer
Hewlett-Packard