Title :
Influence of Soft-Under-Layer in Perpendicular Media on Magnetic Contact Duplication Characteristics
Author :
Izumi, A. ; Nagahama, Y. ; Komine, T. ; Sugita, R. ; Nagao, M. ; Nishikawa, M. ; Yasunaga, T.
Author_Institution :
Ibaraki Univ., Hitachi
Abstract :
In this study, the influence of soft-under-layer (SUL) on duplication characteristics was investigated. The magnetic field distributions around a slave medium were calculated. In the case of perpendicular field application (PFA), influence of SUL on duplication characteristics doesn´t almost change even though duplication field strength increases. On the other hand, in the case of in-plane field application (IFA), the influence of SUL on duplication characteristics is negligible even though a duplication field strength increases. The influence of SUL on duplication characteristics becomes smaller for ultra-high density perpendicular recording.
Keywords :
perpendicular magnetic recording; duplication field strength; in-plane field application; magnetic contact duplication characteristics; magnetic field distributions; perpendicular field application; perpendicular media; soft-under-layer; ultrahigh density perpendicular recording; Costs; Disk recording; Finite element methods; Hard disks; Magnetic fields; Magnetic films; Permeability; Perpendicular magnetic recording; Saturation magnetization; Servomechanisms;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.376353
