Title :
Damping parameter and wall velocity of RE-TM films
Author :
Kobayashi, Takehiko ; Hayashi, H. ; Fujiwara, Y. ; Shiomi, S.
Author_Institution :
Dept. of Phys. Eng., Mie Univ., Tsu, Japan
Abstract :
Wall velocity, one of the properties of magneto-optical disks, can be calculated using the Landau-Lifshitz-Gilbert equation that contains the parameters of gyromagnetic ratio(or g-factor) and damping parameter. In most cases, magnetic layer is made of ferrimagnetic rare-earth 3d-transition-metal alloy (RE-TM) films where the g-factor is well known. In this regard, the temperature dependence of the Gilbert damping parameter and the domain wall velocity of RE-TM films are discussed.
Keywords :
damping; ferrimagnetic materials; g-factor; magnetic domain walls; magnetic thin films; magneto-optical recording; Gilbert damping parameter; Landau-Lifshitz-Gilbert equation; domain wall velocity; ferrimagnetic rare-earth-3d-transition-metal alloy films; g-factor; gyromagnetic ratio; magneto-optical disk; Damping; Ferrimagnetic films; Gyromagnetism; Magnetic domain walls; Magnetic films; Magnetic resonance; Magnetization; Magnetooptic effects; Microwave integrated circuits; Temperature dependence;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463555
