TY - JOUR
T1 - Seedlayer and preheating effects on crystallography and recording performance of CoCrPtB perpendicular media
AU - Zheng, Min
AU - Choe, Geon
AU - Johnson, Kenneth E.
AU - Gao, Lan
AU - Liou, Sy Hwang
N1 - Funding Information:
Manuscript received February 13, 2002; revised May 19, 2002. This work was supported in part by the Army Research Office under Grant DAAD19-00-1-0119. M. Zheng, G. Choe, and K. E. Johnson are with MMC Technology, Inc., San Jose, CA 95131 USA (e-mail: [email protected]). L. Gao and S.-H. Liou are with the Department of Physics and Astronomy, University of Nebraska, Lincoln, NE 68588 USA. Digital Object Identifier 10.1109/TMAG.2002.801792.
PY - 2002/9
Y1 - 2002/9
N2 - The effects of seedlayer (SL) and preheating on the crystallographic, magnetic, and recording properties of CoCr18Pt16B4 granular perpendicular magnetic media have been investigated. For the media with Ru as underlayer, although higher preheating improves both coercivity and squareness, the media is much noisier. With introducing Ta SL, Ru (0002)/Co (0002) crystallography is greatly enhanced. High coercivity, unity squareness, and negative nucleation field are achieved even at low preheating without degrading signal-to-noise ratio. In addition, the media is magnetically stable for a wide range of recording density.
AB - The effects of seedlayer (SL) and preheating on the crystallographic, magnetic, and recording properties of CoCr18Pt16B4 granular perpendicular magnetic media have been investigated. For the media with Ru as underlayer, although higher preheating improves both coercivity and squareness, the media is much noisier. With introducing Ta SL, Ru (0002)/Co (0002) crystallography is greatly enhanced. High coercivity, unity squareness, and negative nucleation field are achieved even at low preheating without degrading signal-to-noise ratio. In addition, the media is magnetically stable for a wide range of recording density.
KW - Crystallography
KW - Granular media
KW - Perpendicular recording
KW - Ru UL
KW - Ta SL
KW - Thermal stability
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U2 - 10.1109/TMAG.2002.801792
DO - 10.1109/TMAG.2002.801792
M3 - Conference article
AN - SCOPUS:0036762383
SN - 0018-9464
VL - 38
SP - 1979
EP - 1981
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 5 I
T2 - 2002 International Magnetics Conference (Intermag 2002)
Y2 - 28 April 2002 through 2 May 2002
ER -