Open AccessSTRUCTURES AND MAGNETIC PROPERTIES OF ISOTROPIC NANOSTRUCTURED Fe-Pt THIN FILMS
Author(s) -
Yizhong Wang,
Maocai Zhang,
Yu Qiao,
Jin Wang,
Yinjun Wang,
Baogen Shen,
BoPing Hu
Publication year - 2000
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.49.1600
Subject(s) - materials science , thin film , ferromagnetism , annealing (glass) , condensed matter physics , isotropy , sputtering , saturation (graph theory) , nanotechnology , composite material , optics , physics , mathematics , combinatorics
Two series of isotropic nanostructured Fe-Pt permenent magnetic thin films have been prepared by sputtering Fe/Pt multilayers and subsequent vacuum annealing. Their structures and magnetic properties have been inverstigated. Studies show that Fe-Pt permenent magnetic thin films with Fe-rich were composed of two phases: a hard FePt phase and a soft Fe3Pt phase. Saturation magnetic polarization and remaenence increase with increasing thickness of the Fe layer. Kelly-Henkel plot indicates that magnetic interactions in Fe-Pt thin films are mainly determined by ferromagnetic exchange interaction between neighboring grains.