Nanocrystalline glass-coated FeNiMoB microwires

被引：24
|
作者：
Komova, E. [2 ]
Varga, M. [1 ]
Varga, R. [1 ]
Vojtanik, P. [1 ]
Bednarcik, J. [3 ]
Kovac, J. [4 ]
Provencio, M. [5 ]
Vazquez, M. [5 ]
机构：
[1] Fac Sci, Inst Phys, Kosice 04154, Slovakia
[2] TU Kosice, Fac Aeronaut, Kosice 04121, Slovakia
[3] DESY, HASYLAB, D-22603 Hamburg, Germany
[4] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia
[5] CSIC, Inst Mat Sci, E-28049 Madrid, Spain
来源：
APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 06期
关键词：
D O I：
10.1063/1.2969057
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The evolution of the structure of glass-coated Fe40Ni38Mo4B16 amorphous microwire with thermal treatments and its interplay with magnetism has been studied. As shown by x-ray diffraction, a primary crystallization process resulted into formation of gamma-(Fe,Ni) nanocrystallites embedded in a residual amorphous matrix. The evolution of the saturation magnetization and the switching field after different thermal treatment was studied. Amorphous glass-coated microwires based on FeNi exhibit magnetic bistability even in the nanocrystalline state. This is explained by the high magnetoelastic anisotropy, which is also responsible for magnetic hardening after annealing at the temperatures above 670 K. (C) 2008 American Institute of Physics.
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页数：3
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