CoPt/Ag nanocomposites for high density recording media

被引：100

作者：

Stavroyiannis, S ^{[1
]}

Panagiotopoulos, I

Niarchos, D

Christodoulides, JA

Zhang, Y

Hadjipanayis, GC

机构：

[1] NCSR Demokritos, IMS, Aghia Paraskevi 15310, Greece

[2] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 23期

关键词：

D O I：

10.1063/1.122794

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanocomposite CoPt/Ag films have been successfully fabricated and their microstructural and magnetic properties have been investigated for potential applications in magnetic recording media. This was done by first making sputtered CoPt/Ag multilayers with the face-centered cubic (fcc) structure which is magnetically soft and then annealing the multilayers to transform the fcc phase to the highly anisotropic face-centered tetragonal phase (fct) which is magnetically hard. The final nanocomposite structure consists of CoPt nanoparticles with the hard fct phase embedded in a fcc Ag matrix. Large values of coercivity in the range of 1-17 kOe were achieved with grain sizes in the range of 7-100 nm, respectively. (C) 1998 American Institute of Physics. [S0003-6951(98)01549-6].

引用

页码：3453 / 3455

页数：3

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