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

fYear

2002

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/INTMAG.2002.1000581

Filename

1000581