Accession Number:

AD0720386

Title:

Studies of Magnetostatic Waves and Magnetoelastic Waves in YIG Using Optical Probing and Microwave Techniques

Descriptive Note:

Semi-annual technical rept. no. 2, 1 Aug 1970-1 Feb 1971

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR MATERIALS SCIENCE AND ENGINEERING

Report Date:

1971-03-15

Pagination or Media Count:

189.0

Abstract:

The report describes in detail the technical progress made in studies of strong infrared light scattering from coherent spin waves during the second six months of a three year interdisciplinary research program. Coherent light scattering from coherent microwave spin waves in yttrium iron garnet YIG is studied theoretically and experimentally. The method is then used, in conjunction with standard microwave techniques, to probe the propagation of spin waves and magnetoelastic waves, in spatially-andor-temporally-varying magnetic fields. The dispersion of magnetoelastic waves propagating parallel to saturation magnetization when the latter is in an arbitrary crystallographic direction, first presented by Morgenthaler, is rederived. The report discusses the first direct observation of strong Bragg Scattered infrared light 1150 nm wavelength from coherent microwave spin waves.

Subject Categories:

  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE