The chaotic instability of magnetostatic surface waves paths in the
“bank-type” field with space modulation
V. I. Shcheglov
Kotel’nikov Institute of Radio Engineering and Electronics,
Fryazino, Moscow region
The paper is received on September 23, 2014
Abstract. The propagation of magnetostatic
surface waves (MSSW) in ferrite plate biased by nonuniform magnetic “bank-type”
field with space modulation is investigated. It is shown that in this
conditions the MSSW wave beam paths take place of chaotic character showed in
chaotic jumps of amplitude, frequency and phase. In is found the effect of path
“outshining”, consist of its breaking by outgoing to the same space region where
the field is less than low field boundary of MSSW spectrum. It is shown that
the most strong paths chaotic character is caused by modulation of slope ”bank”
steepness, slightly less of top height and the least – the displacement of its
top. It is shown that the most strong chaotic character take place by the work
on the frequency near the top boundary of MSSW spectrum. It was noted that
observed phenomena are resembled to the particle motion in “mixing billiard”.
In the parameter which makes mixing it was shown to wave number of MSSW. It was
considered the practice realization of observed phenomena and made the
recommendations to its experiment observation.
Key words:
ferrite, magnetostatic wave,
chaotic vibrations.