Packings of Os layers for the development of L10 order of FePt in nanoscale [Os-FePt]n multilayer systems

被引：1

作者：

Su, T. T. ^{[1
]}

Hsiao, Ching-Hung ^{[1
]}

Lo, Shen-Chuan ^{[2
,3
]}

Ouyang, Wen ^{[4
]}

Li, Tzu-Yuan ^{[1
]}

Ouyang, H. ^{[1
]}

Yao, Y. D. ^{[5
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

[2] Ind Technol Res Inst, Mat & Chem Res Labs, Hsinchu 310, Taiwan

[3] Ind Technol Res Inst, Nanotechnol Res Ctr, Hsinchu 310, Taiwan

[4] Chung Hua Univ, Dept Comp Sci & Informat Engn, Hsinchu 300, Taiwan

[5] Natl Pingtung Univ Educ, Dept Appl Phys, Pingtung 900, Taiwan

来源：

JOURNAL OF APPLIED PHYSICS | 2013年 / 113卷 / 17期

关键词：

MAGNETIC-PROPERTIES; THIN-FILMS; TEMPERATURE; MICROSTRUCTURE; STABILITY;

D O I：

10.1063/1.4800985

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The element osmium (Os), with high melting and boiling points, plays a crucial role in the development of the L1(0) order for FePt in [Os(5 nm)/FePt(25 nm)](4) and [Os(1nm)/FePt(5nm)](20) systems. The large mismatches of lattice constants between Os and FePt, with specific epitaxial relations, induce a great strain in the [Os(5 nm) /FePt(25 nm)](4) system with fixed total thicknesses for the FePt and Os layers. Due to this large strain effect, the L1(0) order in a FePt structure can be enhanced through an application of stressing along the c axis for the face-centered cubic structure, which results in a higher coercivity. However, a smaller degree of average strain was observed in the 5 nm-thickness FePt system due to the existence of pinholes. (C) 2013 AIP Publishing LLC

引用

页数：3