返回Google圖書搜尋

Spin Wave Anisotropy in Parallel Pumping Experiments on YIG

James C. SetharesMarden H. SeaveyMartin R. Stiglitz

出版	Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force, 1964
URL	http://books.google.com.hk/books?id=p_YE0QKCUEkC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋A theoretical and experimental investigation of magnetic anisotropy effects on spin wave excitation in parallel pumping experiments has been conducted. The experiments were performed at Xband frequencies on single crystal yttrium iron garnet. Anisotropy is introduced into the framework of existing theory. The spin wave dispersion relation and instability thresholds for pumping in a (110) crystallographic direction are derived. A number of experimental butterfly curves for various temperatures, crystallographic orientations, and geometries are obtained and compared with the theoretical predictions. A new effect, experimentally observable as an extra corner on the butterfly curves (separate from the phonon peaks), is shown to be directly related to the anisotropy produced splitting of the top of the spin wave band. (Author).