Preparation and Characterization of Cd1-xFexSe Single Crystals

Abstract

The limit of substitution of iron for cadmium in CdSe was determined by x-ray diffraction of polycrystalline samples to be 11.5 + or - 1 mole percent. Single crystals of Ce1-xFexSe were grown by CVT and by a modified Bridgman method. The magnetic susceptibility of crystals grown by both methods displayed field-independent behavior. Measurements of susceptibility as a function of temperature showed Curie-Weiss behavior with net antiferromagnetic interactions. Bridgman-grown crystals have room temperature resistivities at least 10 to the 3rd power ohm-cm higher than that of the CVT grown crystals (1700 ohm-cm). The iron concentration of Bridgman-grown crystals was homogeneous in a radial direction, but showed 0.5 - 0.8 mole percent change in iron concentration along the length of the boule. Cadmium, Iron, Selenium.

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Document Details

Document Type
Technical Report
Publication Date
Jul 25, 1988
Accession Number
ADA197890

Entities

People

  • Aaron Wold
  • Julio Marsella
  • Kirby Dwight
  • Kyle L Smith
  • Robert N. Kershaw

Organizations

  • Brown University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Availability
  • Chemistry
  • Classification
  • Contracts
  • Crystals
  • Electrical Measurement
  • Elements
  • Magnetic Properties
  • Materials
  • Measurement
  • Military Research
  • Security
  • Single Crystals
  • Temperature Gradients
  • Universities
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Thin Film Deposition Science.