The effect of different cooling processes on the microstructure and magnetic properties of FePt single layer films

被引：0

作者：

Dong, Kai-feng ^{[1
]}

Yang, Xiao-fei ^{[1
]}

Miao, Xiang-shui ^{[1
]}

Xu, Xiao-hong ^{[2
]}

Cheng, Xiao-min ^{[1
]}

Wang, Fang ^{[2
]}

Yan, Jun-bing ^{[1
]}

Cheng, Wei-ming ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Wuhan 430074, Peoples R China

[2] Shanxi Normal Univ, Inst Chem & Mat Sci, Linfen 041004, Peoples R China

来源：

EIGHTH INTERNATIONAL SYMPOSIUM ON OPTICAL STORAGE AND 2008 INTERNATIONAL WORKSHOP ON INFORMATION DATA STORAGE | 2009年 / 7125卷

基金：

中国国家自然科学基金;

关键词：

FePt single layer film; cooling process; coercivity; IMPROVEMENT;

D O I：

10.1117/12.822036

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The FePt single layer films with different thickness were deposited by RF magnetron sputtering on glass and Corning glass substrates, and the L1(0)-FePt films were obtained after the as-deposited samples were subjected to vacuum annealing using different cooling processes. Results show that after annealed at 550 degrees C for 1h, the perpendicular coercivity of the FePt single layer films decreases with the increasing of FePt layer thickness, and the FePt 15nm film exhibits a high perpendicular coercivity of 8308 Oe and a low in-plane coercivity of 5141 Oe, which suggests that the film exhibits a high perpendicular anisotropy. The FePt films with nature cooling can obtain larger Mr/Ms values than that with fast cooling.

引用

页数：6

共 17 条

[1] Improvement in hard magnetic properties of FePt films by introduction of Ti underlayer [J].

Chen, SC ;

Kuo, PC ;

Kuo, ST ;

Sun, AC ;

Chou, CY ;

Fang, YH .

IEEE TRANSACTIONS ON MAGNETICS, 2005, 41 (02) :915-917

[2]

CHIKAZUMI S, 1995, PHYS FERROMAGNETISM

[3] Effects of Ag underlayers on the microstructure and magnetic properties of epitaxial FePt thin films [J].

Hsu, YN ;

Jeong, S ;

Laughlin, DE ;

Lambeth, DN .

JOURNAL OF APPLIED PHYSICS, 2001, 89 (11) :7068-7070

[4] Synthesis, chemical ordering, and magnetic properties of self-assembled FePt-Ag nanoparticles [J].

Kang, SS ;

Nikles, DE ;

Harrell, JW .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) :7178-7180

[5] Microstructure and magnetic properties of nanocomposite FePtCr-SiN thin films [J].

Kuo, PC ;

Chen, SC ;

Yao, YD ;

Sun, AC ;

Chiang, CC .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) :8638-8640

[6] THERMAL-INSTABILITY AT 10-GBIT/IN(2) MAGNETIC RECORDING [J].

LU, PL ;

CHARAP, S .

IEEE TRANSACTIONS ON MAGNETICS, 1994, 30 (06) :4230-4232

[7] HIGH-DENSITY MAGNETIC RECORDING MEDIA DESIGN AND IDENTIFICATION - SUSCEPTIBILITY TO THERMAL DECAY [J].

LU, PL ;

CHARAP, SH .

IEEE TRANSACTIONS ON MAGNETICS, 1995, 31 (06) :2767-2769

[8] Reduction of ordering temperature of an FePt-ordered alloy by addition of Cu [J].

Maeda, T ;

Kai, T ;

Kikitsu, A ;

Nagase, T ;

Akiyama, J .

APPLIED PHYSICS LETTERS, 2002, 80 (12) :2147-2149

[9]

MIKE D, 2002, OOMMF USERS GUIDE RE

[10] Magnetic behavior of MiFe/NiO bilayers [J].

Qian, ZH ;

Sivertsen, JM ;

Judy, JH .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (11) :6825-6827

← 1 2 →