Magnetic Rare Earth Compounds

Abstract

A steady-state crystal growth system suitable for both homoepitaxial and heteroepitaxial growth of unixial magnetic rare earth compounds has been constructed and used for the growth of both YFeO3 and Eu2Er1Ga(0.7)Fe(4.3)O12. A very stable solvent, comprised of BaO-B2O3-BaF2 has been developed. This solvent is nonvolatile and nonreactive, and is well suited to the solution growth of magnetic oxides. Arrays of bubbles have been generated in YFeO3 and the coercivity and mobility of crystals grown from this solvent have been measured and found to be about 0.05 Oe and about 3500 cm/s-Oe, comparable to the values for crystals grown in the PbO-based solvents. Stable arrays of mobile bubbles have also been generated in heteroepitaxially grown Eu2Er1Ga(0.7)Fe(4.3)O12. Emission spectrographic analysis indicates that barium incorporation in the crystals grown from the BaO-based solvent is less than lead incorporated in those grown from the PbO-based solvent.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1971
Accession Number
AD0885334

Entities

People

  • Robert A. Burmeister
  • Ronald Hiskes
  • Theron L. Felmlee

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Coercivity
  • Critical Temperature
  • Crystal Growth
  • Crystal Lattices
  • Crystals
  • Epitaxial Growth
  • Liquid Phases
  • Magnetic Domains
  • Magnetic Fields
  • Magnetic Materials
  • Magnetic Properties
  • Measurement
  • Phase Diagrams
  • Physical Properties
  • Temperature Gradients
  • Test And Evaluation
  • Transitions

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Semiconductor Device Technology