Nanopatterning of "hard" magnetic nanostructures via dip-pen nanolithography and a sol-based ink

被引:107
作者
Fu, L
Liu, XG
Zhang, Y
Dravid, VP
Mirkin, CA
机构
[1] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA
[2] Northwestern Univ, Inst Nanotechnol, Evanston, IL 60208 USA
[3] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
[4] Northwestern Univ, Inst Nanotechnol, Evanston, IL 60208 USA
关键词
D O I
10.1021/nl034172g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A direct-write method for fabricating "hard" magnetic barium hexaferrite, BaFe12O19 (BaFe), nanostructures, based on dip-pen nanolithography and a sol-gel process, is presented. This method utilizes a conventional atomic force microscope tip, coated with the BaFe precursor solution, to generate patterns that can be post-treated at elevated temperature to generate magnetic features consisting of barium ferrite in its hexagonal magnetoplumbite (M-type) structure. Features ranging from several hundred nm down to below 100 nm were generated and studied using AFM, magnetic force microscopy, and X-ray photoelectron spectroscopy. The approach offers a new way for patterning functional inorganic nanostructures with deliberate control over feature size and shape, as well as interfeature distance and location.
引用
收藏
页码:757 / 760
页数:4
相关论文
共 25 条
[21]   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
[22]   Unconventional methods for fabricating and patterning nanostructures [J].
Xia, YN ;
Rogers, JA ;
Paul, KE ;
Whitesides, GM .
CHEMICAL REVIEWS, 1999, 99 (07) :1823-1848
[23]   Hierarchically ordered oxides [J].
Yang, PD ;
Deng, T ;
Zhao, DY ;
Feng, PY ;
Pine, D ;
Chmelka, BF ;
Whitesides, GM ;
Stucky, GD .
SCIENCE, 1998, 282 (5397) :2244-2246
[24]   A MEMS nanoplotter with high-density parallel dip-pen manolithography probe arrays [J].
Zhang, M ;
Bullen, D ;
Chung, SW ;
Hong, S ;
Ryu, KS ;
Fan, ZF ;
Mirkin, CA ;
Liu, C .
NANOTECHNOLOGY, 2002, 13 (02) :212-217
[25]   Key step in synthesis of ultrafine BaFe12O19 by sol-gel technique [J].
Zhong, W ;
Ding, WP ;
Zhang, N ;
Hong, JM ;
Yan, QJ ;
Du, YW .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1997, 168 (1-2) :196-202