Interfacial disorder in the L10 FePt particles capped with amorphous Al2O3

被引:47
作者
Takahashi, YK [1 ]
Hono, K [1 ]
机构
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
关键词
D O I
10.1063/1.1641175
中图分类号
O59 [应用物理学];
学科分类号
摘要
L1(0)-FePt particles disorder at the interface when an amorphous Al2O3 layer is capped on an ordered FePt particulate film at room temperature. The coercivity decreases drastically as a result. Interfacial disordering does not progress when the capped layer is deposited at elevated temperature, indicating that the disordering is driven by the strain at the interface. The FePt particulate film becomes magnetized more easily by the Al2O3 capping. (C) 2004 American Institute of Physics.
引用
收藏
页码:383 / 385
页数:3
相关论文
共 8 条
[1]   Magnetic, structural and microstructural properties of FePt/M (M = C, BN) granular films [J].
Christodoulides, JA ;
Farber, P ;
Daniil, M ;
Okumura, H ;
Hadjipanayis, GC ;
Skumryev, V ;
Simopoulos, A ;
Weller, D .
IEEE TRANSACTIONS ON MAGNETICS, 2001, 37 (04) :1292-1294
[2]  
Ivanov O. A., 1973, PHYS MET METALLOGR, V35, P81
[3]   Structural and magnetic properties of FePt-Ag composite film with perpendicular magnetic anisotropy [J].
Kang, KH ;
Yang, T ;
Suzuki, T .
IEEE TRANSACTIONS ON MAGNETICS, 2002, 38 (05) :2039-2041
[4]   Apparent spin polarization decay in Cu-dusted Co/Al2O3/Co tunnel junctions [J].
LeClair, P ;
Swagten, HJM ;
Kohlhepp, JT ;
van de Veerdonk, RJM ;
de Jonge, WJM .
PHYSICAL REVIEW LETTERS, 2000, 84 (13) :2933-2936
[5]   Grain growth and L10 ordering in FePt-SiO2 granular films [J].
Saito, T ;
Kitakami, O ;
Shimada, Y .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 239 (1-3) :310-312
[6]   Preparation and magnetic properties of highly coercive FePt films [J].
Shima, T ;
Takanashi, K ;
Takahashi, YK ;
Hono, K .
APPLIED PHYSICS LETTERS, 2002, 81 (06) :1050-1052
[7]   Size effect on the ordering of FePt granular films [J].
Takahashi, YK ;
Ohkubo, T ;
Ohnuma, M ;
Hono, K .
JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) :7166-7168
[8]   Microstructure and magnetic properties of FePt-Al-O granular thin films [J].
Watanabe, M ;
Masumoto, T ;
Ping, DH ;
Hono, K .
APPLIED PHYSICS LETTERS, 2000, 76 (26) :3971-3973