Enhanced L10 Ordering and (001) Orientation in FePt: Ag Nanocomposite Films by Monatomic Layer Deposition

被引：4

作者：

Yu, Y. S. ^{[1
,2
,3
]}

George, T. A. ^{[1
,2
]}

Li, W. L. ^{[3
]}

Yue, L. P. ^{[1
,2
]}

Fei, W. D. ^{[3
]}

Li, Haibo ^{[4
]}

Sellmyer, D. J. ^{[1
,2
]}

机构：

[1] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA

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

[3] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

[4] Jilin Normal Univ, Coll Phys, Siping 136000, Peoples R China

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2010年 / 46卷 / 06期

关键词：

Coercivity; iron-platinum (FePt); magnetic recording; multilayer films; MAGNETIC-PROPERTIES; TEMPERATURE; ALLOY;

D O I：

10.1109/TMAG.2010.2040715

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The magnetic and structural properties of atomic-scale [Fe/Pt](18) and [Fe/Pt/Ag](18) multilayer films annealed at 350 and 400 degrees C have been investigated. The results indicate that, by introducing thin Ag addition layers, the ordering temperature of FePt with nominal 7.4-nm thickness (excluding Ag thickness) can be significantly reduced to 350 degrees C, at which a relatively large coercivity is achieved. When annealing temperature increases to 400 degrees C, the atomic-scale [Fe/Pt](18) and [Fe/Pt/Ag](18) multilayer films show (001) orientation. The reduced diffusion length of atoms in atomic-scale multilayer films and an enhanced atomic diffusion coefficient produced by Ag doping led to the low-temperature ordering and (001) orientation of L1(0) FePt phase.

引用

页码：1817 / 1820

页数：4

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