Exchange Coupling in Ni81Fe19/Cr82Al18 Bilayers
Author(s) -
Guoqiang Xia,
Zhou Shiming,
Wang Song-You,
Chen Liang-Yao
Publication year - 1999
Publication title -
acta physica sinica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.48.200
Subject(s) - antiferromagnetism , materials science , ferromagnetism , atomic force microscopy , coercivity , condensed matter physics , coupling (piping) , exchange bias , layer (electronics) , exchange interaction , magnetic field , nanotechnology , magnetization , magnetic anisotropy , composite material , physics , quantum mechanics
In Py/CrAl bilayers (where Py=Ni81Fe19), the coercivity at room temperature is found to be a linear function of 1/t3/2FM, indicating the existence of random exchange interaction at the FM/AFM interface (FM=ferromagnetic, AFM=antiferromagnetic). The AFM layer thickness dependencies of the He and Hc are also studied.
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