By Topic

IEEE Transactions on Magnetics

Issue 1 • Date January 1985

Filter Results

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

    Publication Year: 1985, Page(s): 0
    Request permission for commercial reuse | PDF file iconPDF (547 KB)
    Freely Available from IEEE
  • Magnetism during the IEEE's first one hundred years (1884-1984)

    Publication Year: 1985, Page(s):2 - 9
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1791 KB)

    It is the purpose of this paper to discuss the advances which have occurred in the field of magnetism since 1884. This exercise is intended to serve as a part of IEEE's centennial reminiscences. Clearly, the advances have been many and significant. Just as clearly, most of them were made during the past forty years. The century witnessed an impressive growth in both the quality and the quantity of... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 1-µm bubble ion-implanted devices with two-level ion-implanted layers between propagation tracks

    Publication Year: 1985, Page(s):10 - 13
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    A new kind of 1-μm bubble device with two ion-implanted layers between propagation tracks has been studied. The ion-implanted layer in the center between two adjacent propagation tracks is thinner than that in the vicinity of the propagation track edge, where bubbles adhere. The unimplanted area is produced by the use of both photoresist and Mo masks to stop the ions, whereas the thinner impl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Estimation of the shape of magnetic transitions by a deconvolution technique

    Publication Year: 1985, Page(s):14 - 19
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    The measurement of magnetic transitions in a digital recording system through the application of digital signal processing is presented. The observability of the magnetization waveform in the presence of uncertainties in the readback parameters of the head is discussed. The effect of noise on the deconvolution process and algorithmic techniques for minimizing the resulting measurement errors are o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The effect of spring pad loading and head penetration on the flight of flexible disk over a spherical head

    Publication Year: 1985, Page(s):20 - 27
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    A flexible disk, spinning at relatively low speed (80-600 r/min) and locally sandwiched between a spherical head and a spring loaded pressure pad, is investigated by stroboscopic white light interferometry. The contours of the disk in the vicinity of the head in general, and the minimum head/disk spacing in particular, are determined for various values of parameters such as disk speed, head penetr... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Theory of playback process with soft magnetic underlayer

    Publication Year: 1985, Page(s):28 - 35
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    Based on the Tsuboi-Fushida-Wallace spacing loss law, reciprocity principle, and the principle of an image plane, a two-dimensional, head independent theory of the playback process has been developed for perpendicular magnetic recording (PMR) media with a soft magnetic underlayer (SMUL). An assumption that the reversible magnetic permeability of the recording media is equal to one gives results in... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Basic properties of AC noise

    Publication Year: 1985, Page(s):36 - 40
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    The noise characteristics of ac demagnetized particulate media with special emphasis on correlation function analysis are discussed. The recording samples were specially prepared iron-oxide media coated on glass substrates by means of a spin coating technique. The media were nonoriented, which meant that the particles in the dried coating constituted a virgin state which is different from the ac e... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Effects of crystallographic misorientation on power loss in

    Publication Year: 1985, Page(s):41 - 44
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (366 KB)

    The effects of the inclination angle β of the [001] axis out of the sheet plane on the thickness dependence of the power losses in View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A new method for fast and efficient magnetic selection of hard Ferrites

    Publication Year: 1985, Page(s):45 - 48
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    A new method for fast and efficient magnetic selection of hard ferrites is described in which a procedure of magnetization with transient periodical oscillations (MTPO) is used. This method was evaluated during the determination of remanent induction Brand coercive forceBHcof hard ferrites. The equivalent circuit of an instrument for magnetization, measuring, selec... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The magnetic domain and properties of amorphous ribbons

    Publication Year: 1985, Page(s):49 - 52
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1552 KB)

    The magnetic behavior of Fe78B13Si9amorphous ribbons has been investigated by means of observations of the magnetic domains and measurements of the magnetization curves and core losses. The Fe78B13Si9samples, which were 10 mm wide and approximately 25 μm thick, were annealed under 10-3torr, from 200°C to 425... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The removal of particles from the matrix of a high-gradient magnetic separator

    Publication Year: 1985, Page(s):53 - 57
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    The desorption of hematite particles from the matrix of a magnetic separator was studied experimentally as a function of the pH value and flowrate of the water used for flushing. It was found that the removal of particles was strongly dependent on the pH value of the flushing water, the optimum being at pH 11. A model based on Derjaguin-Landau-Verwey-Overbeek (DLVO) theory was developed, and the e... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Effects of the radial magnetic field on the DC magnetizing effect in the toroidal core

    Publication Year: 1985, Page(s):58 - 60
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    Curves of circumferential magnetic induction of a supermalloy tape wound core obtained by the de magnetizing effect are presented, They exhibit, for high radial applied fields, negative susceptibilities, and show the impossibility of saturating the sample. These features are interpreted as secondary effects of the radial field employed to magnetize the sample. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • [Back cover]

    Publication Year: 1985, Page(s): 0
    Request permission for commercial reuse | PDF file iconPDF (1140 KB)
    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