Title :
First order parametric instability of quasi-surface spin waves in ferromagnetic films
Author :
Kalinikos, B.A. ; Slavin, A.N. ; Ulyanov, V.I.
Author_Institution :
V.I. Ulyanov Electr. Eng. Inst., Leningrad, USSR
fDate :
11/1/1991 12:00:00 AM
Abstract :
A theory is presented for the first-order (three-wave) parametric instability of a quasi-surface spin wave propagating in a tangentially magnetized ferromagnetic film. It is taken into account that the propagating quasi-surface spin wave is excited by the localized pumping magnetic field (e.g. the field of a microstrip antenna), and the threshold value of this field is calculated. Theoretical results are compared to the results of experiments performed on yttrium-iron-garnet films
Keywords :
ferromagnetism; garnets; magnetic surface phenomena; magnetic thin films; spin waves; yttrium compounds; YFe5O12; YIG films; ferromagnetic films; first order parametric instability; localized pumping magnetic field; quasi-surface spin waves; threshold value; Antennas and propagation; Ferrimagnetic films; Frequency; Garnet films; High K dielectric materials; Magnetic fields; Magnetic films; Microstrip antennas; Nonuniform electric fields; Yttrium;
Journal_Title :
Magnetics, IEEE Transactions on
