REMANENCE AND COERCIVITY IN EXCHANGE-COUPLED AMORPHOUS ND50FE50 FE MULTILAYERS/

Authors
WAN H TSOUKATOS A HADJIPANAYIS GC
Citation
H. Wan et al., REMANENCE AND COERCIVITY IN EXCHANGE-COUPLED AMORPHOUS ND50FE50 FE MULTILAYERS/, Nanostructured materials, 4(8), 1994, pp. 979-983
Citations number
8
Journal title
Nanostructured materials → ACNP
ISSN journal
09659773
Volume
4
Issue
8
Year of publication
1994
Pages
979 - 983
Database
ISI
SICI code
0965-9773(1994)4:8<979:RACIEA>2.0.ZU;2-O
Abstract
The hysteresis behavior of sputtered Nd50Fe50/Fe multilayers consistin g of alternate layers of magnetically hard Nd50Fe50 and soft alpha-Fe phases with a bilayer thickness in the range of 20-40 nm has been inve stigated. Samples prepared at 5 mTorr Ar gas pressure showed a uniform single-phase hysteresis loop, with increased reduced remanence (0.6) for Fe layer thickness under 7.5 nm, which is attributed to a strong e xchange coupling between the hard Nd50Fe50 and soft alpha-Fe. Samples sputtered at higher gas pressures showed smooth loops for larger criti cal Fe thickness, with a higher coercivity and a lower reduced remanen ce.