A model is suggested that explains the stationary high-frequency magnetizat
ion oscillations observed previously by M. Tsoi et al. when passing dc curr
ent through a silver tip mounted on a magnetic Co/Cu multilayer. At the int
erface between nonmagnetic and ferromagnetic (N/F) metals, Aronov's gap Del
ta (A) (difference in the electrochemical potentials of electrons with oppo
site spins) arises upon the passage of electric current, thereby energetica
lly promoting magnon creation. Electrons flowing from the nonmagnetic to th
e ferromagnetic metal become spin-polarized. In a magnetic field, magnetiza
tion fluctuations in a mesoscopic ferromagnet give rise to magnetization pr
ecession around the magnetic field. The precession is damped due to the vis
cous losses. In the presence of spin-polarized electron flow, the fluctuati
ons also produce a current-induced torque that compensates for the dissipat
ive torque, leading to stationary high-frequency magnetization oscillations
. (C) 2001 MAIK "Nauka/Interperiodica".