Structural and magnetic properties of FePt:SiO2 granular thin films

被引：157

作者：

Luo, CP ^{[1
]}

Sellmyer, DJ

机构：

[1] Univ Nebraska, Behlen Lab Phys, Lincoln, NE 68588 USA

[2] Univ Nebraska, Ctr Mat Res & Anal, Lincoln, NE 68588 USA

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 20期

关键词：

D O I：

10.1063/1.125264

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanocomposite FePt:SiO2 films have been fabricated by annealing the as-deposited FePt/SiO2 multilayers at temperatures from 450 to 650 degrees C. These films consist of high-anisotropy tetragonal L1(0) FePt particles embedded in a SiO2 matrix. The structural and magnetic properties of these films were investigated. We have found that coercivity and grain size are highly dependent on the annealing temperature and SiO2 concentration. Films with coercivities in the range from 2 to 8 kOe and grain sizes of 10 nm or less were obtained. These films have considerable potential as high-density magnetic recording media. (C) 1999 American Institute of Physics. [S0003-6951(99)01446-1].

引用

页码：3162 / 3164

页数：3

共 9 条

[1] HIGH ANISOTROPY L1(0) THIN-FILMS FOR LONGITUDINAL RECORDING [J].