ELECTROMAGNETIC EMISSION BY A SYSTEM OF NONEQUILIBRIUM MAGNONS IN A FERRITE

Authors
TARANENKO AY MINO M YAMAZAKI H SAFONOV VL
Citation
Ay. Taranenko et al., ELECTROMAGNETIC EMISSION BY A SYSTEM OF NONEQUILIBRIUM MAGNONS IN A FERRITE, Journal of the Physical Society of Japan, 65(12), 1996, pp. 4072-4075
Citations number
27
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
65
Issue
12
Year of publication
1996
Pages
4072 - 4075
Database
ISI
SICI code
0031-9015(1996)65:12<4072:EEBASO>2.0.ZU;2-1
Abstract
Spectra of electromagnetic emission of frequencies similar or equal to omega(i), 2 omega(i) and 3 omega(i), where omega(i) is the bottom of the spin-wave band have been studied in yttrium iron garnet at tempera tures of liquid nitrogen and liquid helium. The spin-wave system was s trongly excited by parallel pumping with microwaves of frequency omega (p) > 2 omega(i). Line shapes and frequency shifts of the emission dep end on temperature, static magnetic field, pump power and time duratio n of the pump pulse. Discussion of obtained results is given.