Effect of exchange on magnetostatic modes
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Effect of exchange on magnetostatic modes by Marshall Sparks

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Published by Rand Corporation] in [Santa Monica, Calif .
Written in English

Subjects:

  • Magnetic films.,
  • Thin films -- Magnetic properties.

Book details:

Edition Notes

Other titlesMagnetostatic modes, Effect of exchange on
StatementM. Sparks.
SeriesPaper / Rand -- P-4367, P (Rand Corporation) -- P-4367.
The Physical Object
Pagination8 p. :
ID Numbers
Open LibraryOL18554887M

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It then treats magnetostatic modes, describing how the modes are excited, how they propagate, and how they interact with light. There are problems at the end of each chapter; many of these serve to expand or explain the material in the text. To enhance the book's usefulness as a reference, the answers are given for many of the problems. The nonlinear behavior of magnetostatic modes in thin films is reviewed for cases where the magnetostatic modes are not degenerate with modes of the exchange branches. Measurements of auto-oscillation frequency and of the domain of auto-oscillation are presented for one circular film, showing the effects of pumping frequency and magnetostatic. MODE DENSITY It has been indicated earlier that the spin-wave spectrum of an infinite medium in the exchange- free range of wavelength has an upper bound at a frequency Q2 = ^+Sr The magnetostatic mode spectrum, on the other hand, extends to f2 == Off+1/2 although the form of the solution changes at the spin-wave by: 5. Magnetostatic Energy and Forces Magnetostatic (dipole-dipole) forces are long-ranged, but weak. They determine the magnetic microstructure. M! 1 MA m-1, µ 0H d! 1 T, hence µ 0H dM! J m-3 Atomic volume! ( nm)3; equivalent temperature! 1 K. Products BH, BM, µ 0H2, µ 0M 2 are all energies per unit volume.

The different inhomogeneous magnetostatic and exchange field strength values inside the square for the “C-” and “S-” state lead to different frequencies of the magnetostatic spin-wave. We investigate the effects of magnetostatic interlayer coupling on the formation of magnetic domains in exchange-coupled ferromagnetic films exhibiting perpendicular magnetic anisotropy. Solid-State Electronics Pergamon Press Vol 8, pp Printed in Great Britain MAGNETOSTATIC-MODE LINEWIDTHS IN YTTRIUM-IRON GARNET Y. W. LAM Department of Electronic and Electrical Engineering, University of Birmingham, England (Received 27 May ) Abstract-Measurements have been made at X-Band on the linewidths of a number of magnetostatic modes .   Different modes of spin waves. The amplitude of oscillation as a function of time in magnetostatic surface mode (a), backward volume mode (b), and forward volume mode (c). (d) The frequency of different spin wave modes as a function of magnetic field.

Request PDF | Magnetostatic modes in ferromagnetic nanowires. II. A method for cross sections with very large aspect ratio | We present a method which allows one to calculate the frequencies of. The second‐order effect of electromagnetic propagation on the essentially static‐field distribution of the magnetostatic modes of a ferromagnetic sample is obtained by an iteration‐type technique. The magnetostatic potential constitutes the source in a mathematical sense for a second‐order correct field distribution. The internal sample fields are investigated for a ferrite cylinder. The effect of magnetostatic interactions on the magnetisation structure and magnetic properties of magnetite grains for the size range - microns has been exam-ined. The understanding of magnetostatic interactions is important because magnetite that occurs naturally by some precipitation process and in sedimentary rocks containing. Search the world's most comprehensive index of full-text books. My library.