Accession Number:

AD0657790

Title:

PARAMAGNETIC RESONANCE IN RARE EARTH METALS.

Descriptive Note:

Final scientific rept. 1 Jun 66-31 May 67,

Corporate Author:

SHEFFIELD UNIV (ENGLAND) DEPT OF PHYSICS

Report Date:

1967-06-26

Pagination or Media Count:

22.0

Abstract:

Apparatus for the observation of spin wave resonance SWR in rare earth metal films in magnetic fields of 27 Koe and at liquid nitrogen temperatures was developed. Although SWR was observed in evaporated iron and nickel films none has been observed in gadolinium. This may be due to oxidations during preparation, magnetostrictive strains in the crystal dispersion in the magnetization, or a combination of these. The problems involved in the preparation of these films were defined and a programme of producing thin gadolinium films and examining them by transmission electron microscopy was commenced. The use of Lorentz electron microscope techniques allow of the simultaneous examination of magnetic and crystallographic structure. Author

Subject Categories:

  • Electricity and Magnetism
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE