Preparation and Properties of Arrays of Very Small Magnetic Particles.

Abstract

Techniques were developed to produce two dimensional arrays of magnetic particles with minimum dimensions of about 2500 A, to measure their magnetic properties. The purpose of the work was to provide a clean experimental test of the behavior of magnetic particles in the single domain size range, especially of the effects of particle interactions in this size range. The particles produced were too large to show single domain behavior, but with improved electron beam lithography equipment it should be possible to produce arrays of smaller particles. An improved vibrating sample magnetometer was developed to permit measurement of the magnetic properties of there very small samples. Keywords: Magnetic particles; Fine particles; Magnetic properties; Electron beam lithography; Magnetometers.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1987
Accession Number
ADA179781

Entities

People

  • C. D. Graham Jr.
  • Forrest Kaatz

Organizations

  • University of Pennsylvania

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Classification
  • Detectors
  • Electron Beam Lithography
  • Electron Beams
  • Electron Microscopes
  • Electrons
  • Laboratory Magnetometers
  • Lithography
  • Magnetic Properties
  • Magnetometers
  • Materials
  • Materials Science
  • Military Research
  • Particles
  • Security
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Nanofabrication and Microfabrication.
  • Solar Physics

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition
  • Microelectronics
  • Microelectronics - Graphene