Ferromagnetic Resonance in Iron Oxides,

Abstract

Natural ferromagnetic resonance in Fe3O4 and gamma-Fe2O3 is discussed, noting especially the broad region of resonance and a permeability appreciably less than unity. Values of the internal anisotropic magnetic field intensity for Fe3O4 and are calculated. It is shown that the absorption mechanism cannot be represented by an idealized damped oscillator or Gaussian absorption mechanism. An explanation of the observed ferromagnetic resonance is offered. Natural ferromagnetic resonance in Fe3O4 and gamma-Fe2O3 is discussed, noting especially, the broad region of resonance and a permeability appreciably less than unity Values of the internal anisotropic magnetic field intensity for Fe3O4 and are calculated. It is shown that the absorption mechanism cannot be represented by an idealized damped oscillator or Gaussian absorption mechanism. An explanation of the observed ferromagnetic resonance is offered.

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Document Details

Document Type
Technical Report
Publication Date
Mar 11, 1949
Accession Number
ADA321742

Entities

People

  • C. H. Willis
  • G. E. Crouch Jr.

Organizations

  • Princeton University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption
  • Accuracy
  • Engineering
  • Ferromagnetic Resonance
  • Frequency
  • Iron Oxides
  • Magnetic Fields
  • Magnetic Materials
  • Magnetic Moments
  • Magnetic Resonance
  • Materials
  • Military Research
  • New York
  • Paramagnetic Resonance
  • Quantum Properties
  • Resonance
  • Resonant Frequency

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Superconducting Magnet Technology