Title :
Experimental determination of demagnetization field in perpendicular media
Author :
Sunder, A. ; Zhou, Huimin ; Karns, D.C.
Author_Institution :
Seagate Res., Pittsburgh, PA, USA
fDate :
March 30 2003-April 3 2003
Abstract :
In this paper, the demagnetization field is determined from a spin-stand technique. However, we have found that the theoretical models cannot be accurately applied to perpendicular media. Therefore a new analysis is introduced and the results are compared with analytical calculations. All experiments are performed on a Guzik spin-stand tester using a longitudinal head trimmed into a single-pole head and a multilayered medium with a soft underlayer.
Keywords :
demagnetisation; magnetic multilayers; Guzik spin-stand test; demagnetization field; longitudinal head trimming; multilayered medium; perpendicular media; single-pole head; soft underlayer; spin-stand technique; Artificial intelligence; Coercive force; Demagnetization; Magnetic heads; Performance evaluation; Perpendicular magnetic recording; Remanence; Shape; Testing; Time of arrival estimation;
Conference_Titel :
Magnetics Conference, 2003. INTERMAG 2003. IEEE International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7647-1
DOI :
10.1109/INTMAG.2003.1230677
