High coercivity of ordered macroporous FePt films synthesized via colloidal templates

被引：24
作者：
Iskandar, F
Iwaki, T
Toda, T
Okuyama, K
机构：
[1] Hiroshima Univ, Grad Sch Engn, Dept Chem Engn, Higashihiroshima 7398527, Japan
[2] Japan Chem Innovat Inst, Hiroshima Joint Res Ctr Nanotechnol Particle Proj, Higashihiroshima 7398530, Japan
[3] Toda Kogyo Corp, Naka Ku, Hiroshima 7300847, Japan
来源：
NANO LETTERS | 2005年 / 5卷 / 07期
关键词：
D O I：
10.1021/nl050863w
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The preparation of a three-dimensionally (3D) ordered macroporous iron-platinum (FePt) film derived from monodisperse FePt nanoparticles (approximately 3 nm in diameter) and polystyrene latex particles (254 nm in diameter) is described. The prepared film has a hexagonally ordered porous structure and coercivity up to 10 kOe after annealing at a temperature of 600 degrees C. We also found that size of FePt particles was maintained at around 3 nm, even after annealing at a temperature of 600 degrees C.
引用
收藏
页码：1525 / 1528
页数：4
相关论文
共 12 条
[1]   ON THE SPECIFIC REACTIVITY OF PLATINUM SEGREGATED LAYERS ON PT80X20 (111) (X = NI, CO, FE) ALLOYS [J].
BERTOLINI, JC ;
MASSARDIER, J .
CATALYSIS LETTERS, 1991, 9 (3-4) :183-188
[2]  
Elkins KE, 2003, NANO LETT, V3, P1647, DOI 10.1021/nl034743w
[3]   Silica films containing ordered pores prepared by dip coating of silica nanoparticles and polystyrene beads colloidal mixture [J].
Iskandar, F ;
Abdullah, M ;
Yoden, H ;
Okuyama, K .
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2004, 29 (01) :41-47
[4]   Optical band gap and ultralow dielectric constant materials prepared by a simple dip coating process [J].
Iskandar, F ;
Abdullah, M ;
Yoden, H ;
Okuyama, K .
JOURNAL OF APPLIED PHYSICS, 2003, 93 (11) :9237-9242
[5]   In situ production of spherical silica particles containing self-organized mesopores [J].
Iskandar, F ;
Mikrajuddin ;
Okuyama, K .
NANO LETTERS, 2001, 1 (05) :231-234
[6]   Preparation of high coercivity magnetic FePt nanoparticles by liquid process [J].
Iwaki, T ;
Kakihara, Y ;
Toda, T ;
Abdullah, M ;
Okuyama, K .
JOURNAL OF APPLIED PHYSICS, 2003, 94 (10) :6807-6811
[7]   Monodisperse FePt nanoparticles and ferromagnetic FePt nanocrystal superlattices [J].
Sun, SH ;
Murray, CB ;
Weller, D ;
Folks, L ;
Moser, A .
SCIENCE, 2000, 287 (5460) :1989-1992
[8]  
Velev OD, 2000, ADV MATER, V12, P531, DOI 10.1002/(SICI)1521-4095(200004)12:7<531::AID-ADMA531>3.0.CO
[9]  
2-S
[10]   INHIBITED SPONTANEOUS EMISSION IN SOLID-STATE PHYSICS AND ELECTRONICS [J].
YABLONOVITCH, E .
PHYSICAL REVIEW LETTERS, 1987, 58 (20) :2059-2062
12