BOTTOM OF THE SPIN-WAVE SPECTRUM IN A MAGNETIC FILM

Abstract

The bottom of the spin-wave spectrum is examined for the case of a thin film magnetized in its plane. The bias field H sub b and wave number k sub b for the onset of first-order spin-wave instability at high microwave power is calculated. In addition, the critical thickness d sub c, at which the uniform mode saturation process changes from first to second order, is obtained. These results are in fairly good agreement with experiment.

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Document Details

Document Type
Technical Report
Publication Date
Jul 28, 1965
Accession Number
AD0619985

Entities

People

  • Kenneth J. Harte

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Agreements
  • Air Force
  • Dispersion Relations
  • Films
  • Frequency
  • Instability
  • Magnetic Films
  • Magnetization
  • Massachusetts
  • Materials Laboratories
  • Spectra
  • Spin Waves
  • Thick Films
  • Thin Films
  • Universities
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Pulsed Power and Plasma Physics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.