KINETIC INSTABILITY AND BOSE-CONDENSATION OF NONEQUILIBRIUM MAGNONS

被引：21
|
作者：
MELKOV, GA
SAFONOV, VL
TARANENKO, AY
SHOLOM, SV
机构：
[1] RUSSIAN RES CTR KURCHATOV INST,INST MOLEC PHYS,MOSCOW 123182,RUSSIA
[2] KIEV TG SHEVCHENKO STATE UNIV,DEPT RADIOPHYS,KIEV 252127,UKRAINE
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1994年 / 132卷 / 1-3期
关键词：
D O I：
10.1016/0304-8853(94)90311-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Several models in which a microwave radiation of the frequency omega1 arises from the bottom of spin-wave spectrum under condition of parametric resonance of magnons of the frequency omega(p)/2 are considered. Weak radiation of the frequency omega2 = omega(p) + omega1 has been detected in thin ferrite film. This radiation can be treated in favour of both the theory of kinetic instability and the thermodynamic theory of parametric resonance of magnons. Possibility of Bose condensation of nonequilibrium magnons is discussed.
引用
收藏
页码：180 / 184
页数：5
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