GROWTH AND CHARACTERIZATION OF SINGLE CRYSTALS OF RARE EARTH COMPOUNDS.

Abstract

Work was largely confined to the preparation of the rare earth compounds and the construction of a cryostat for electrical measurements at low temperatures. Several efficient processes were found to yield pure homogeneous compounds according to the specified stoichiometries. For the growth of single crystals of europium monochalcogenides (EuS, EuSe, and EuTe), the iodine transport method has proved to be especially attractive. Preliminary results have also demonstrated the feasibility of obtaining single-crystal thin-films of EuS through the mechanism of epitaxial overgrowth. For electrical resistance measurements at temperatures ranging from 1.2 to 300 K, a cryostat equipped with a vacuum-tight resistance probe was built and tested. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1943
Accession Number
AD0421023

Entities

Organizations

  • Westinghouse Electric Corporation

Tags

DTIC Thesaurus Topics

  • Construction
  • Cryostats
  • Crystals
  • Electrical Measurement
  • Electrical Resistance
  • Europium
  • Films
  • Low Temperature
  • Measurement
  • Resistance
  • Single Crystals
  • Stoichiometry
  • Thin Films

Readers

  • Materials Science and Engineering.
  • Thermal Physics or Thermal Science.