Accession Number:

AD0631317

Title:

RESEARCH ON STRUCTURE AND MAGNETIC PROPERTIES OF EXPITAXIALLY GROWN MAGNETIC FILMS.

Descriptive Note:

Final scientific rept., 17 Dec 62-16 Dec 65,

Corporate Author:

FRANKLIN INST RESEARCH LABS PHILADELPHIA PA

Personal Author(s):

Report Date:

1966-02-28

Pagination or Media Count:

44.0

Abstract:

Three major areas have been investigated. 1 An investigation of the role of imperfections in magnetic thin films has been conducted and a strong emphasis in this effort has been placed upon epitaxial properties. The results include an evaluation of voids in aged single crystals, an analysis of face-centered-cubic single crystal cobalt films and an investigation of ripple as related to crystallographic properties of the epitaxial films. 2 A program to investigate the properties and origin of strip domains in various NiFe thin films was initiated. Methods for observing these domains were perfected and properties evaluated as a function of film fabrication parameters. 3 A large uniaxial anisotropy has been observed in NiFe films deposited on single crystal quartz substrates. Subsequent investigations show that its origin is a substrate-film constraint mechanism related to the planar strain system developed because of a difference in coefficients of the thermal expansion of the quartz and NiFe film. Author

Subject Categories:

  • Metallurgy and Metallography
  • Crystallography
  • Electricity and Magnetism
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE