Magnetic properties of the amorphous Fe-Zr-B-Ni alloys annealed below the crystallization temperature

Author

Yu, Seong-Cho ; Lee, Soo-Hyung ; Kim, Kyeong-Sup ; Rao, K.V. ; Kim, Kwang-Youn ; Kang, Il-Koo

Author_Institution

Dept. of Phys., Chung-Buk Nat. Univ., Cheongju, South Korea

Volume

31

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

3907

Lastpage

3909

Abstract

We have studied the magnetic properties of amorphous Fe_83-xZr₇B₁₀Ni_x alloys annealed below the crystallization temperature. Such materials are considered to have a potential for high frequency core material applications because of possibilities of obtaining high effective permeability and low coercive force. The addition of Ni content of approximately 0.5-1.5 at.% was found to be effective in improving the soft magnetic properties. The temperature dependence of magnetization measured by a SQUID magnetometer are found to be in good agreement with the spin wave theory. The spectroscopic splitting g values obtained by ferromagnetic resonance (FMR) experiments increase with increasing Ni content. The values of the spin wave stiffness increases from 62.7 meV Å² to 95.2 meV Å² with increasing the concentration of Ni. From these experimental results, the range of the exchange interaction are deduced

Keywords

amorphous magnetic materials; annealing; boron alloys; coercive force; exchange interactions (electron); ferromagnetic materials; ferromagnetic resonance; g-factor; iron alloys; magnetic permeability; magnetisation; nickel alloys; soft magnetic materials; spin waves; zirconium alloys; (FeNi)₈₃Zr₇B₁₀; FMR; Ni content; amorphous Fe-Zr-B-Ni alloys; amorphous Fe_83-xZr₇B₁₀Ni_x alloys; annealing; crystallization temperature; exchange interaction; ferromagnetic resonance; high effective permeability; high frequency core material applications; low coercive force; magnetic properties; magnetization; soft magnetic properties; spectroscopic splitting g values; spin wave stiffness; spin wave theory; temperature dependence; Amorphous materials; Annealing; Crystalline materials; Iron alloys; Magnetic materials; Magnetic properties; Magnetic resonance; Nickel alloys; Soft magnetic materials; Zirconium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.489812

Filename

489812