Periodic magnetic nanostructures on self-assembled surfaces by ion beam bombardment

被引:21
作者
Chen, YJ [1 ]
Wang, JP [1 ]
Soo, EW [1 ]
Wu, L [1 ]
Chong, TC [1 ]
机构
[1] Data Storage Inst, Singapore 117608, Singapore
关键词
D O I
10.1063/1.1447494
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate that periodic magnetic nanostructures can be fabricated by depositing perpendicular magnetic films on self-assembled surfaces by ion beam bombardment. Similar stripe domain patterns and reduced coercivity are observed for the as-deposited sample as compared with those for a reference sample with unbombarded substrate. Further processing steps such as etching and polishing will be needed to isolate the magnetic elements from each other, in order to make ultrahigh density magnetic storage media. (C) 2002 American Institute of Physics.
引用
收藏
页码:7323 / 7325
页数:3
相关论文
共 11 条
[1]   SNR and density limit estimates: A comparison of longitudinal and perpendicular recording [J].
Bertram, HN ;
Williams, M .
IEEE TRANSACTIONS ON MAGNETICS, 2000, 36 (01) :4-9
[2]   THEORY OF RIPPLE TOPOGRAPHY INDUCED BY ION-BOMBARDMENT [J].
BRADLEY, RM ;
HARPER, JME .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1988, 6 (04) :2390-2395
[3]   Magnetic and structural properties of nanophase Pt/Co multilayers [J].
Carcia, PF ;
Coulman, D ;
McLean, RS ;
Reilly, M .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1996, 164 (03) :411-419
[4]   Thermal stability of recorded information at high densities [J].
Charap, SH ;
Lu, PL ;
He, YJ .
IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (01) :978-983
[5]   Tip artifacts in atomic force microscope imaging of ion bombarded nanostructures on germanium surfaces [J].
Chen, YJ ;
Wilson, IH ;
Lee, CS ;
Xu, JB ;
Yu, ML .
JOURNAL OF APPLIED PHYSICS, 1997, 82 (11) :5859-5861
[6]   Magnetic domain structures of Co22Ag78 granular films observed by magnetic force microscopy [J].
Chen, YJ ;
Cheung, WY ;
Wilson, IH ;
Ke, N ;
Wong, SP ;
Xu, JB ;
Sang, H ;
Ni, G .
APPLIED PHYSICS LETTERS, 1998, 72 (19) :2472-2474
[7]   Formation of ordered nanoscale semiconductor dots by ion sputtering [J].
Facsko, S ;
Dekorsy, T ;
Koerdt, C ;
Trappe, C ;
Kurz, H ;
Vogt, A ;
Hartnagel, HL .
SCIENCE, 1999, 285 (5433) :1551-1553
[8]   Patterned magnetic recording media [J].
Ross, C .
ANNUAL REVIEW OF MATERIALS RESEARCH, 2001, 31 :203-235
[9]  
SOO EW, 2001, 6 AS S INF STOR TECH
[10]   Monodisperse FePt nanoparticles and ferromagnetic FePt nanocrystal superlattices [J].
Sun, SH ;
Murray, CB ;
Weller, D ;
Folks, L ;
Moser, A .
SCIENCE, 2000, 287 (5460) :1989-1992