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Atomic Ordering Kinetics of FePt Thin Films

被引：0
|
作者：
Li, X. H. [1 ,2 ]
Liu, B. T. [2 ]
Sun, H. Y. [1 ]
Li, W. [1 ]
Zhang, X. Y. [1 ]
机构：
[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
[2] Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 02期
关键词：
L1(0) Ordered Domains; Ordering Kinetics; Activation Energy; COPT; GROWTH; PHASE; TRANSFORMATION;
D O I：
10.1166/jnn.2009.C105
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In the present study, the nucleation and growth kinetics of the L1(0) ordered domains in FePt thin films were studied by using X-ray diffraction (XRD) measurements combined with transmission electron microscopy (TEM). A small nucleation activation energy E-n = (0.5 +/- 0.1) eV and a relatively large growth activation energy E-g = (0.9 +/- 0.1) eV for the L1(0) ordered domains are separately determined. The high ratio E-g/E-n > 1 yields an understanding of a high L1(0) ordering temperature for the FePt thin films used for magnetic recording media.
引用
收藏
页码：1141 / 1143
页数：3
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