Accession Number:

AD0657240

Title:

LOW MAGNETIC SATURATION GARNETS.

Descriptive Note:

Quarterly progress rept. no. 1, 1 Feb-30 Apr 67,

Corporate Author:

SPERRY MICROWAVE ELECTRONICS CO CLEARWATER FLA

Report Date:

1967-08-01

Pagination or Media Count:

33.0

Abstract:

The anisotropy field measured on selected compounds of YCaVIG increased in a linear fashion with decreasing temperature. The room temperature anisotropy fields for YCaVIG materials are considerably higher than the BiCaVIG compounds for an equivalent 4piMs at 4piMs of 530 gauss, 240 oersteds compared to 65 oersteds. Linewidth versus temperature measured for single crystals of YIG, BiCaVIG and BiCaVAlIG showed the linewidth to be independent of temperature from -60 to 60C. Remanence ratios RR of 0.55 with coercive fields of 3 oersteds were measured on single phase, high density Bi0.4Ca2.6V1.3Fe3.7O12. Materials containing a second phase of Fe2O3 showed a sharp drop in RR0.55 to 0.38. The operation of a microstrip circulator using BiCaVAlIG material is described. Author

Subject Categories:

  • Electrical and Electronic Equipment
  • Crystallography
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE