Effects of Cu addition on the structure and magnetic properties of L10-FePt nanoparticles prepared by sol-gel method

被引：8

作者：

Liu, Yang ^{[1
,2
,3
]}

Jiang, Yuhong ^{[1
]}

Kadasala, Naveen ^{[3
]}

Zhang, Xiaolong ^{[1
]}

Mao, Chenyi ^{[3
]}

Wang, Yaxin ^{[1
]}

Liu, Huilian ^{[1
]}

Jiang, Xiaona ^{[1
]}

Yang, Jinghai ^{[1
]}

Yan, Yongsheng ^{[2
]}

机构：

[1] Jilin Normal Univ, Key Lab Funct Mat Phys & Chem, Minist Educ, Siping 136000, Peoples R China

[2] Jiangsu Univ, Inst Chem & Chem Engn, Zhenjiang 212013, Peoples R China

[3] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2014年 / 72卷 / 01期

基金：

中国国家自然科学基金;

关键词：

FePt nanoparticles; Cu; Sol-gel method; Structure; Magnetic properties; THIN-FILMS; FEPT NANOPARTICLES; COPT NANOPARTICLES; IN-SITU; TEMPERATURE; AG; MICROSTRUCTURE; CATALYSTS; GROWTH; ALLOY;

D O I：

10.1007/s10971-014-3442-1

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

(FePt)(100)Cu-0, (FePt)(95)Cu-5 and (FePt)(90)Cu-10 nanoparticles (NPs) were successfully synthesized by the sol-gel method. The relationship between Cu doping and structure and magnetic properties of L1(0)-FePt NPs was studied. The results indicated that all three samples originated a L1(0)-FePt structure and Cu doping did not destroy the ordered structure of L1(0)-FePt. By increasing the Cu content, c/a ratio of the FePtCu NPs linearly decreased. Pawley refinement showed symmetry of (FePt)(95)Cu-5 NPs was still tetragonal. When the Cu concentration increased from 0 to 10 %, coercivity increased from 7,050 to 11,250 Oe. This result confirms that the prepared alloys can be promising candidates for magnetic storage applications.

引用

页码：156 / 160

页数：5

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