Distributed exchange interactions and temperature dependent magnetization in amorphous Fe88-xCoxZr7B4Cu1 alloys

Authors
Gallagher, KA Willard, MA Zabenkin, VN Laughlin, DE McHenry, ME
Citation
Ka. Gallagher et al., Distributed exchange interactions and temperature dependent magnetization in amorphous Fe88-xCoxZr7B4Cu1 alloys, J APPL PHYS, 85(8), 1999, pp. 5130-5132
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
85
Issue
8
Year of publication
1999
Part
2A
Pages
5130 - 5132
Database
ISI
SICI code
0021-8979(19990415)85:8<5130:DEIATD>2.0.ZU;2-H
Abstract
The temperature dependence of the magnetization for Fe88Zr7B4Cu1 amorphous alloy has been measured. M(T) has been fit using a Handrich-Kobe model with a modified Brillouin function with an additional exchange fluctuation term . Here for the first time, an asymmetrical distribution of the exchange int eractions is proposed based on empirical knowledge of the Bethe-Slater curv e. A two-parameter exchange fluctuation is shown to give significantly bett er fits to M( T) for these amorphous alloys. (C) 1999 American Institute of Physics. [S0021-8979(99)76608-9].