Annealing environment effects on the microstructure and magnetic properties of FePt-TiO2 and CoPt-TiO2 nanocomposite films

被引：19
|
作者：
Tang, Rujun [1 ,2 ]
Zhang, Wanli [1 ]
Li, Yanrong [1 ]
机构：
[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Sichuan, Peoples R China
[2] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117576, Singapore
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 496卷 / 1-2期
关键词：
FePt; CoPt; TiO2; Nanocomposite film; Annealing environment; GRAIN-GROWTH; FEPT; OXIDATION; COPT;
D O I：
10.1016/j.jallcom.2010.02.018
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effects of Ar and Ar + 4%H-2 annealing environments on the microstructure and magnetic properties of the FePt-TiO2 and CoPt-TiO2 nanocomposite films were investigated. Results showed that the annealing environments affect the phase transformations of L1(0)-FePt and L1(0)-CoPt alloys greatly. The Ar + 4%H-2 significantly improved the L1(0)-ordering of FePt-TiO2 and CoPt-TiO2 nanocomposites compared to the Ar. The CoPt-TiO2 nanocomposite exhibited better L1(0)-ordering and larger coercivity than those of FePt-TiO2 due to the better oxidation resistance. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：380 / 384
页数：5
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