Ordered Ni nanohole arrays with engineered geometrical aspects and magnetic anisotropy

被引：56

作者：

Navas, D. ^{[1
]}

Hernandez-Velez, M.

Vazquez, M.

Lee, W.

Nielsch, K.

机构：

[1] CSIC, Inst Ciencia Mat, Madrid 28049, Spain

[2] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Germany

[3] UAM, Dept Appl Phys, Madrid 28049, Spain

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 19期

关键词：

D O I：

10.1063/1.2737373

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ni nanohole arrays are prepared by a replication process involving sputtering, polymer molding pressing, and electroplating techniques, using anodic alumina membranes as templates. Nanohole diameter to interhole distance ratio is engineered by suitable template processing. From the analysis of the magnetization curves for increasing nanohole diameter, it is concluded that coercivity increases due to the pinning of domain walls to nanoholes, while in-plane anisotropy decreases owing to local shape anisotropy effects. (C) 2007 American Institute of Physics.

引用

收藏

页数：3

相关论文

共 24 条

[1] Magnetic properties of arrays of ''holes'' in Ni80Fe20 films [J].

Adeyeye, AO ;

Bland, JAC ;

Daboo, C .

APPLIED PHYSICS LETTERS, 1997, 70 (23) :3164-3166

[2] Anisotropy and magnetotransport in ordered magnetic antidot arrays [J].

Castaño, FJ ;

Nielsch, K ;

Ross, CA ;

Robinson, JWA ;

Krishnan, R .

APPLIED PHYSICS LETTERS, 2004, 85 (14) :2872-2874

[3] Nanometric superlattices: non-lithographic fabrication, materials, and prospects [J].

Chik, H ;

Xu, JM .

MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2004, 43 (04) :103-138

[4] Magnetic switching and uniaxial anisotropy in lithographically defined anti-dot Permalloy arrays [J].

Cowburn, RP ;

Adeyeye, AO ;

Bland, JAC .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1997, 173 (1-2) :193-201

[5] Magnetic domain formation in lithographically defined antidot Permalloy arrays [J].

Cowburn, RP ;

Adeyeye, AO ;

Bland, JAC .

APPLIED PHYSICS LETTERS, 1997, 70 (17) :2309-2311

[6]

Hilzinger H. R., 1976, Journal of Magnetism and Magnetic Materials, V2, P11, DOI 10.1016/0304-8853(75)90098-0

[7] A general template-based method for the preparation of nanomaterials [J].

Hulteen, JC ;

Martin, CR .

JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (07) :1075-1087

[8] Ordered nanoporous nickel films and their magnetic properties [J].

Lei, Y ;

Chim, WK ;

Zhang, ZP ;

Zhou, TJ ;

Zhang, LD ;

Meng, GW ;

Phillipp, F .

CHEMICAL PHYSICS LETTERS, 2003, 380 (3-4) :313-318

[9]

Li AP, 1999, ADV MATER, V11, P483, DOI 10.1002/(SICI)1521-4095(199904)11:6<483::AID-ADMA483>3.0.CO

[10]

2-I