Title :
Microwave oscillations of magnetization of single-domain nanodisk at heating by impulses of laser radiation
Author :
Kukharev, A.V. ; Danilyuk, A.L.
Author_Institution :
Belarusian State Univ. of Inf. & Radioelectron., Minsk, Belarus
Abstract :
We have performed the simulation of switching of magnetization in a ferromagnetic single-domain particle, when it is heated by a single impulse of laser radiation. It is shown that switching of magnetization is accompanied by damped microwave oscillations with a duration of a few nanoseconds. The frequency, the duration and a mode of these oscillations depend on geometrical sizes, the crystallographic orientation and the initial temperature of a disk.
Keywords :
cobalt; ferromagnetic materials; heat treatment; laser beam effects; magnetic domains; magnetic particles; magnetic switching; nanomagnetics; nanoparticles; crystallographic orientation; damped microwave oscillations; disk temperature; ferromagnetic single-domain particle; geometrical sizes; heating; laser radiation impulse; magnetization switching; single-domain nanodisk; Heating; Magnetic switching; Magnetization; Magnetomechanical effects; Masers; Optical switches; Oscillators;
Conference_Titel :
Microwave and Telecommunication Technology (CriMiCo), 2011 21th International Crimean Conference
Conference_Location :
Sevastopol
Print_ISBN :
978-1-4577-0883-1
