Title :
Low temperature magnetization in nanocrystalline Fe88Zr 7B4Cu1 alloy
Author :
Kim, Kyeong-Sup ; Yu, Seong-Cho ; Kim, Kwang-Youn ; Noh, Tae-Hwan ; Kang, II-Koo
Author_Institution :
Dept. of Phys., Chungbuk Nat. Univ., Cheongju, South Korea
fDate :
11/1/1993 12:00:00 AM
Abstract :
The authors report on the effect of annealing temperatures on the spin wave excitations for the nanocrystalline Fe88Zr7 B4Cu1 alloy, observed from the low-temperature magnetization curve and the spectroscopic splitting g factor. The thermomagnetization curve at low temperature is found to obey the Bloch law, Ms(T)=Ms (0)(1-BT3/2-CT5/2). From these experimental results, spin wave stiffness constants within the annealing condition are calculated. The effective permeability, coercive force, saturation magnetization (B10), magnetostriction and magnetic anisotropy of the annealed alloys are studied systematically
Keywords :
annealing; boron alloys; coercive force; copper alloys; ferromagnetic properties of substances; ferromagnetic resonance; g-factor; iron alloys; magnetic anisotropy; magnetic permeability; magnetic properties of amorphous substances; magnetisation; magnetostriction; metallic glasses; nanostructured materials; spin waves; zirconium alloys; 500 to 700 C; Bloch law; FMR; Fe88Zr7B4Cu1 alloy; amorphous alloys; annealed alloys; coercive force; effect of annealing temperatures; effective permeability; low-temperature magnetization curve; magnetic anisotropy; magnetostriction; nanocrystalline; saturation magnetization; spectroscopic splitting g factor; spin wave excitations; spin wave stiffness constants; thermomagnetization curve; Annealing; Coercive force; Copper alloys; Iron alloys; Magnetostriction; Permeability; Saturation magnetization; Spectroscopy; Temperature; Zirconium;
Journal_Title :
Magnetics, IEEE Transactions on
