Title :
Magnetization reversal dynamics and energy damping
Author :
Jian-Gang Zhu ; White, Richard M.
Author_Institution :
Dept. of Electr. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
Summary form only given. A single spin will not reverse its magnetic moment under a magnetic field without energy dissipation. However, a group of coupled spins could in certain situations by transforming the magnetic potential energy to exchange energy and magnetostatic energy via spin wave generation. In this paper, we present a systematic micromagnetic study on magnetization reversal dynamics in patterned thin film elements as well as thin film write heads. The properties of the generated spin waves and time dependent mode dispersion will be discussed.
Keywords :
magnetic heads; magnetic moments; magnetic thin film devices; magnetisation reversal; magnetostatics; spin waves; coupled spins; energy damping; magnetic moment; magnetic potential energy; magnetization reversal dynamics; magnetostatic energy; patterned thin film elements; spin wave generation; thin film write heads; time dependent mode dispersion; Couplings; Damping; Energy dissipation; Magnetic fields; Magnetic moments; Magnetization reversal; Magnetostatic waves; Micromagnetics; Potential energy; Transistors;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1000581
