Random anisotropy studies in amorphous Fe80-y-xNiyMnxB12Si8 alloys

Authors
Tlemcani, M Meknassi, K Benbachir, K Lassri, H Sayouri, S Krishnan, R
Citation
M. Tlemcani et al., Random anisotropy studies in amorphous Fe80-y-xNiyMnxB12Si8 alloys, PHYS ST S-A, 172(1), 1999, pp. 217-224
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN journal
00318965 → ACNP
Volume
172
Issue
1
Year of publication
1999
Pages
217 - 224
Database
ISI
SICI code
0031-8965(19990316)172:1<217:RASIAF>2.0.ZU;2-6
Abstract
We have studied the magnetization of melt-spun amorphous Fe80-y-xNiyMnxB12S i8 alloys with 20 less than or equal to y((Ni)) less than or equal to 50 an d 0 less than or equal to x((Mn)) less than or equal to 2 under magnetic fi elds up to 18 kOe, and have analyzed the results at 4.2 K, based on the ran dom magnetic anisotropy (RMA) model. The approach to saturation is establis hed in the form of H-1/2 for the various samples. The exchange constant A a nd the ferromagnetic correlation length R-f decrease with Mn addition while the local random anisotropy is enhanced.