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Magnetics in Japan, IEEE Translation Journal on

Issue 1 • Date Jan. 1992

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Displaying Results 1 - 21 of 21
  • [Front cover]

    Publication Year: 1992 , Page(s): c1
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  • List of contributors

    Publication Year: 1992 , Page(s): nil1
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  • [Breaker page]

    Publication Year: 1992 , Page(s): nil1
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  • Table of contents

    Publication Year: 1992 , Page(s): 1
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  • Opinion

    Publication Year: 1992 , Page(s): 2
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  • Effects of Incident Angle on Recording Properties of Vacuum Deposited Co-Cr Films

    Publication Year: 1992 , Page(s): 3 - 9
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    The recording characteristics of Co-Cr films were investigated with respect to the angle at which evaporated atoms are incident on the substrate during film deposition. The recording characteristics of Co-Cr films deposited at angles of incidence of 55° to 20° depend on the head scan direction. In the normal direction, the magnetization in the film is recorded mainly by the magnetic field near t... View full abstract»

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  • Recording Characteristics of Perpendicular Hard Disk Media Measured by MIG Head

    Publication Year: 1992 , Page(s): 10 - 16
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    Recording and reproducing characteristics of a Co-Cr perpendicular magnetic hard disk with a thin Fe-Co back layer were investigated using a non-flying type MIG head. The Co-Cr/Fe-Co composite media were prepared by rf sputtering onto glass substrate with a Cr underlayer. The results showed that a reproduced isolated pulse from the medium has a single peak with large amplitude. The head gap length... View full abstract»

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  • Wall Pinning Effect of Co-Zr-Nb Main-Pole Film on Recording Characteristics of Single-Pole Heads

    Publication Year: 1992 , Page(s): 17 - 23
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    The effect of the domain structure in main-pole film on the reproducing sensitivity was investigated for various single-pole type perpendicular magnetic heads. The reproducing sensitivity of heads made of a Co-Zr-Nb single-layer film becomes unstable and decreases with increasing closure domain size when the track width narrows and the anisotropy field Hk decreases. On the other hand, w... View full abstract»

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  • Magnetic Properties of Sputtered Co-Pt Alloy Films

    Publication Year: 1992 , Page(s): 24 - 30
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    The structure and magnetic properties of Co-Pt alloy thin films were investigated under various sputtering conditions. Co-Pt films with less than 15 at% Pt' had an hep structure, and above 30 at% Pt had an fcc structure. Both hep and fcc phases were identified in films with between 15 and 30 at% Pt. A perpendicular magnetization was observed at compositions between 20 and 40 at% Pt. A substrate bi... View full abstract»

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  • Magnetic Field Characteristics in the Quadri-Layered M-O Film with Overwritability

    Publication Year: 1992 , Page(s): 31 - 37
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    The authors investigated the external magnetic field characteristics of exchange-coupled quadrilayer magnetooptic film in direct overwriting by optical modulation. The external field dependence of the recording characteristics was studied through the temperature dependence of the reversal field and the mechanism of direct overwriting. In direct overwriting by optical modulation, an upper limit to ... View full abstract»

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  • Substitution Effect of Fe Sites in Nd2Fe14B

    Publication Year: 1992 , Page(s): 38 - 44
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    In order to investigate the magnetic contributions of each iron site of Nd2Fe14B, the magnetic properties of Nd2 (Fe1-xMx)14B (M=Al, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, Pt) were measured, and the preferential occupation of Fe sites by M atoms was studied by Mossbauer spectroscopy. The Mossbauer spectra were analyzed by a method of ou... View full abstract»

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  • Anisotropic Nd-Fe-B Sputtered Thin Film Magnets

    Publication Year: 1992 , Page(s): 45 - 50
    Cited by:  Papers (2)
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    Sputtering conditions for synthesis of anisotropic Nd-Fe-B thin film magnets were studied. The results show that both the film composition and the substrate temperature are important parameters affecting the c-axis orientation of the Nd-Fe-B tetragonal compounds. It was shown that an anisotropic thin film magnet with its easy axis of magnetization normal to the film plane could be grown by choosin... View full abstract»

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  • Magnetic Properties of Rapidly Quenched Pseudoternary Pr2Fe14C Alloy Ribbons

    Publication Year: 1992 , Page(s): 51 - 56
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    We investigated the magnetic properties of melt-spun Pr2Fe14C and several pseudoternary compounds of the types Pr2 (Fe,M)14C and (Pr, R)2Fe14C. A value for iHc of approximately 1.3 kOe was obtained in Pr2Fe13MnC alloy ribbons. Heavy rare earth substitution leads to an increase in the room temperature... View full abstract»

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  • Magnetic Properties of Anisotropic Pr-Fe-B Melt-Spun Ribbons

    Publication Year: 1992 , Page(s): 57 - 63
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    The magnetic properties and microstructure of Pr-Fe-B(Ga) melt-spun ribbons prepared by the single- or twin-roller method were studied. A texture with the c-axis normal to the surface was observed in slowly quenched ribbons, and showed a strong dependence on composition. Addition of Ga is effective for increasing the coercivity and the c-axis alignment of ribbons. Magnetic measurements of powders ... View full abstract»

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  • Magnetic Losses of Electrical Iron Sheets under AC Magnetization Superimposed with Higher Harmonics

    Publication Year: 1992 , Page(s): 64 - 74
    Cited by:  Papers (2)
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    The contribution of superimposed higher harmonics to magnetic losses in electrical iron sheets was examined at power frequencies. The results show that processes of magnetization by PWM voltage excitation are similar to those by ac magnetization with a carrier frequency superimposed, and are different from those due to square-wave voltage excitation with the same amplitude and the same time durati... View full abstract»

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  • Dependence of Magnetoresistance and Magnetic Properties on the Deposition Conditions and Temperature in Ni-Co-Fe Alloy Thin Films

    Publication Year: 1992 , Page(s): 75 - 80
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    The magnetoresistance effect and magnetic properties of Ni-Co-Fe thin films prepared under various deposition conditions were studied. An anisotropic magnetoresistivity ratio of above 5% was obtained. The value of ¿av depends on the substrate temperature and film thickness, but ¿¿ does not. Both ¿av and ¿¿ were measured as functions of temperature; the results showed th... View full abstract»

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  • Fabrication and Magnetic Properties of Fe Thin Films on a Substrate Excited by SAW

    Publication Year: 1992 , Page(s): 81 - 87
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    Fe films of thickness 300Å were prepared by electron beam evaporation and dc magnetron sputtering onto LiNbO3 single-crystal substrate excited by surface acoustic waves (SAWs) at 45 MHz. A biaxial anisotropy was induced in the film plane for evaporated films with the substrate excited at 8 V, but was not induced at all in sputtered films. The saturation magnetization Ms of t... View full abstract»

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  • Properties of CoFe2O4 Films Prepared by Annealing Co/Fe Multilayered Films in the Atmosphere

    Publication Year: 1992 , Page(s): 88 - 94
    Cited by:  Patents (1)
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    CoFe2O4 films were fabricated by air annealing of Co/Fe multilayer films prepared by sputtering onto glass substrates. During sputtering, the thickness of the Co and Fe layers and the number N of Co/Fe bilayers were varied, while the total film thickness was held at 2000 Å. The oxide films exhibited a large coercive force near 3 kOe, and the largest Kerr rotation, 0.8° (¿=... View full abstract»

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  • [Advertisement]

    Publication Year: 1992 , Page(s): 95
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  • [Advertisement]

    Publication Year: 1992 , Page(s): 96
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  • [Advertisement]

    Publication Year: 1992 , Page(s): nil2
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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.

Full Aims & Scope

Meet Our Editors

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