AC magnetic properties of FeCo nanocomposites

被引:17
作者
Giri, AK [1 ]
Chowdary, KM [1 ]
Humfeld, KD [1 ]
Majetich, SA [1 ]
机构
[1] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA
基金
美国国家科学基金会;
关键词
AC; coercivity; nanocomposite; permeability;
D O I
10.1109/20.908665
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Here we report the AC magnetic properties of soft magnetic nanocomposites made from compaction of Fe10Co90 nanoparticles, The permeability is constant for low frequencies, but drops off sharply above a characteristic frequency f(c). Above f(c) the coercivity rises steeply and peaks. The characteristic frequency is found to increase linearly with temperature.
引用
收藏
页码:3026 / 3028
页数:3
相关论文
共 11 条
[1]   RANDOM ANISOTROPY IN AMORPHOUS FERROMAGNETS [J].
ALBEN, R ;
BECKER, JJ ;
CHI, MC .
JOURNAL OF APPLIED PHYSICS, 1978, 49 (03) :1653-1658
[2]  
CHEN CW, 1986, MAGNETISM METALLURGY, P196
[3]   NANOCRYSTALLINE SOFT MAGNETIC-MATERIALS [J].
HERZER, G .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 112 (1-3) :258-262
[4]   GRAIN-SIZE DEPENDENCE OF COERCIVITY AND PERMEABILITY IN NANOCRYSTALLINE FERROMAGNETS [J].
HERZER, G .
IEEE TRANSACTIONS ON MAGNETICS, 1990, 26 (05) :1397-1402
[5]   GRAIN-STRUCTURE AND MAGNETISM OF NANOCRYSTALLINE FERROMAGNETS [J].
HERZER, G .
IEEE TRANSACTIONS ON MAGNETICS, 1989, 25 (05) :3327-3329
[6]   Applications of nanocrystalline soft magnetic Fe-M-B (M=Zr, Nb) alloys ''NANOPERM(R)'' [J].
Makino, A ;
Hatanai, T ;
Naitoh, Y ;
Bitoh, T ;
Inoue, A ;
Masumoto, T .
IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (05) :3793-3798
[7]   SOFT MAGNETIC NI-FE AND CO-FE ALLOYS - SOME PHYSICAL AND METALLURGICAL ASPECTS [J].
PFEIFER, F ;
RADELOFF, C .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1980, 19 (1-3) :190-207
[8]  
Scott JHJ, 1998, MATER RES SOC SYMP P, V501, P121
[9]   TIME-DEPENDENT MAGNETIC PHENOMENA AND PARTICLE-SIZE EFFECTS IN RECORDING MEDIA [J].
SHARROCK, MP .
IEEE TRANSACTIONS ON MAGNETICS, 1990, 26 (01) :193-197
[10]   Monodisperse iron-based particles: Precipitation in liquid polyols [J].
Viau, G ;
FievetVincent, F ;
Fievet, F .
JOURNAL OF MATERIALS CHEMISTRY, 1996, 6 (06) :1047-1053