The resonant mechanism of excitation exchange spin waves in layered monolithic ferrite-ferrite structures

It is found out high (up to 80% and more) efficiency of pulse transformation of exchange spin waves (ESW) and a sound in implanted YIG films. Impulses ESW extended deep into YIG film and were reflected from its opposite surface. Resonant effects colinear and noncolinear transformations ESW are investigated. It is shown, that these effects have long character that allows to reach high efficiency of transformation of energy of fast and slow types of waves even at weak intensity of radiation ESW.