Development of CoX/Pd multilayer perpendicular magnetic recording media with granular seed layers

被引:11
作者
Kubota, Y [1 ]
Weller, D [1 ]
Wu, ML [1 ]
Wu, XW [1 ]
Ju, GP [1 ]
Karns, D [1 ]
Yu, J [1 ]
机构
[1] Seagate Technol LLC, Seagate Res, Pittsburgh, PA 15203 USA
关键词
information storage perpendicular recording; remanence curves; thin films; multilayer; interfaces;
D O I
10.1016/S0304-8853(01)01235-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
CoCrRu-based granular seed layers are studied to control the hysteresis properties of CoX/Pd multilayer based perpendicular magnetic recording media. Proper choice of the CoCrRu growth conditions is found to reduce the hysteresis slope parameter alpha and to improve the switching field distribution, suggesting that this granular seed layer is effective in producing exchange decoupled columnar structures. The results are confirmed by magnetic force microscopy studies of recorded patterns as well as by DC/AC-erase noise measurements, remanent coercivity studies and microstructural observations by transmission electron microscopy. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码:297 / 303
页数:7
相关论文
共 17 条
[1]   PERPENDICULAR MAGNETIC-ANISOTROPY IN PD/CO THIN-FILM LAYERED STRUCTURES [J].
CARCIA, PF ;
MEINHALDT, AD ;
SUNA, A .
APPLIED PHYSICS LETTERS, 1985, 47 (02) :178-180
[2]   INTERFACE MAGNETIC-ANISOTROPY IN EPITAXIAL SUPERLATTICES [J].
ENGEL, BN ;
ENGLAND, CD ;
VANLEEUWEN, RA ;
WIEDMANN, MH ;
FALCO, CM .
PHYSICAL REVIEW LETTERS, 1991, 67 (14) :1910-1913
[3]   Sensitivity enhancement of Co/Pt superlattices through underlayer composition modification [J].
Hatwar, TK ;
Brucker, CF .
JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) :5704-5706
[4]   PERPENDICULAR MAGNETIC-ANISOTROPY OF MULTILAYERS - RECENT INSIGHTS [J].
JOHNSON, MT ;
JUNGBLUT, R ;
KELLY, PJ ;
DENBROEDER, FJA .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 148 (1-2) :118-124
[5]   PD/CO MULTILAYERS FOR PERPENDICULAR MAGNETIC RECORDING [J].
LAIRSON, BM ;
PEREZ, J ;
BALDWIN, C .
IEEE TRANSACTIONS ON MAGNETICS, 1994, 30 (06) :4014-4016
[6]   MEASUREMENT OF THE DYNAMICS OF THE MAGNETIZATION REVERSAL IN INDIVIDUAL SINGLE-DOMAIN FERROMAGNETIC PARTICLES [J].
LEDERMAN, M ;
SCHULTZ, S ;
OZAKI, M .
PHYSICAL REVIEW LETTERS, 1994, 73 (14) :1986-1989
[7]   CO/PT AND CO/PD ULTRATHIN MULTILAYERED FILMS AS NEW MAGNETO-OPTICAL RECORDING MATERIALS [J].
OCHIAI, Y ;
HASHIMOTO, S ;
ASO, K .
IEEE TRANSACTIONS ON MAGNETICS, 1989, 25 (05) :3755-3757
[8]   Low noise Co/Pd multilayer perpendicular media with granular seed layer [J].
Ohmori, H ;
Maesaka, A .
IEEE TRANSACTIONS ON MAGNETICS, 2000, 36 (05) :2384-2386
[9]  
OHMORI H, 2000, PMRC 2000, P27
[10]   Perpendicular magnetic recording thin film media using Co/Pd superlattice on ultrathin indium-tin-oxide seed layers [J].
Peng, W ;
Victora, RH ;
Judy, JH ;
Gao, K ;
Sivertsen, JM .
JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :6358-6360