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IEEE Transactions on Magnetics

Issue 2 • June 1972

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Displaying Results 1 - 13 of 13
  • [Front cover and table of contents]

    Publication Year: 1972, Page(s): 0
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    Freely Available from IEEE
  • The effect of intrinsic magnetic properties on permanent magnet repulsion

    Publication Year: 1972, Page(s):188 - 194
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (681 KB)

    Magnetic repulsion is currently under active consideration as a means for providing quiet, frictionless suspension for future tracked ground transportation vehicles and for providing high-reliability, long-lived, friction-free bearings for unique new devices and components. Analytical and experimental results indicate that the superior intrinsic magnetic properties of certain members of a new clas... View full abstract»

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  • Transverse recording using thin film recording heads

    Publication Year: 1972, Page(s):194 - 200
    Cited by:  Papers (6)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (936 KB)

    This paper presents the results of an investigation of a high density magnetic recording technique utilizing a thin film recording head and a transverse mode of recording on thin media. The significant results of this investigation are as follows. 1) Densities as high as 18 500 transitions per inch were experimentally written in a 300-Å thick FeCr medium having an Hcof 70 oersteds.... View full abstract»

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  • The static M-H loops of stressed magnetic materials with intergranular interaction

    Publication Year: 1972, Page(s):201 - 204
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (289 KB)

    A model for low frequency rotational switching of the magnetization in magnetic materials, leading to individualM-Hcurves, is given. Magnetocrystalline and stress induced anisotropy energies are averaged under the assumption of strong intergranular interaction. Consideration is given to the manner in whichM-Hcurve characteristics are related to such factors as crystallite ori... View full abstract»

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  • Effect of magnetostriction on the elastic properties of goss-oriented Si-Fe sheet subject to bending

    Publication Year: 1972, Page(s):205 - 211
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    Samples of Epstein size (305 mm × 30mm × 0.3 mm) of Goss-oriented silicon-iron sheet have been subjected to static bending sufficient to cause longitudinal curvature of up to 4 m-1. The relationship between bending moment and curvature, expressed in terms of a so-called bending modulus with the dimensions of Young's modulus, is shown to be nonlinear. The nonlinearity is due to... View full abstract»

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  • Grain-size dependence of anhysteresis in iron oxide micropowders

    Publication Year: 1972, Page(s):211 - 213
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The low-field anhysteresis of small equidimensional multidomain particles of Fe3O4is found to be surprisingly large. For particle sizes below about 0.075 μm the anhysteretic susceptibility equals or surpasses that of elongated or doped equidimensional single-domain γFe2O3particles used in conventional recording tapes. View full abstract»

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  • A self-contained magnetic bubble-domain memory chip

    Publication Year: 1972, Page(s):214 - 222
    Cited by:  Papers (19)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1384 KB)

    All the functions essential for the operation of a memory (viz., storage, access, write, read, and detection) can be performed within a bubble-domain memory chip. This enables the design of a memory with a minimum number of peripheral circuits and interconnections, and a short access time. It is conceivable to achieve a 106-bit memory with fewer than 20 circuits (and interconnections), ... View full abstract»

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  • Sensor noise in low-level flux-gate magnetometers

    Publication Year: 1972, Page(s):223 - 231
    Cited by:  Papers (27)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    The noise mechanism in a well-designed magnetometer is shown to be due to small-scale magnetic moments which are probably small volumes of the core material that are not oriented by the drive field. Design developments include the sense coil radius and the development of a drive waveform which yields considerably improved performance over the commonly used sine wave drive. View full abstract»

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  • Recording gap fields by Lorentz shadowgraphs and characteristics of single crystal MnZn ferrites

    Publication Year: 1972, Page(s):232 - 238
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (956 KB)

    Single-crystal manganese zinc ferrites containing excess Fe2O3were prepared by a modified Verneuil method. The magnetic properties measured on single-crystal View full abstract»

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  • Optimum media thickness for digital recording

    Publication Year: 1972, Page(s):239 - 240
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    Thinner media yield narrower output pulses, and in many low density digital recorders this leads to better performance. In high density applications, however, the signal-to-noise ratio (SNR) is of greater importance than pulsewidth. The SNR depends on both the write process and the origin of the dominant noises. Several types of media noise, reproduce head, and electronic noises are discussed. A m... View full abstract»

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  • Theory of single-current domain propagation circuits

    Publication Year: 1972, Page(s):241 - 243
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (273 KB)

    Single-current propagation circuits cause circular magnetic domains in a uniaxial ferrimagnetic wafer to move continuously by properly combining dynamic and static forces which vary periodically with distance. The dynamic force is due to a current and varies periodically with time at a frequencyf. The static force has a spatial period one-half the period of the dynamic force. The static... View full abstract»

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  • Magnetic bubble counting circuits

    Publication Year: 1972, Page(s):240 - 241
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    A new group of magnetic circuits that can count the number of magnetic bubbles and display them in any binary, ternary, ..., decimal basis is proposed. Feasibility of the concept was demonstrated by successful operation of a binary counter circuit. A design of a decimal counter is given. View full abstract»

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  • [Back cover]

    Publication Year: 1972, Page(s): 0
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    Freely Available from IEEE

Aims & Scope

IEEE Transactions on Magnetics publishes research in science and technology related to the basic physics and engineering of magnetism, magnetic materials, applied magnetics, magnetic devices, and magnetic data storage.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Pavel Kabos
National Institute of Standards and Technology