TY - JOUR
T1 - Interlayer Coupling and Magnetization Process in Co/Pt/Gd/Pt Multilayers
AU - Takanashi, K.
AU - Ohba, M.
AU - Kurokawa, H.
AU - Fujimori, H.
N1 - Funding Information:
technicaltoassistanceMr.K.Saitoin theofthesamplesamepreparation.Institutefor This research was supported by a Grant-in Aid "MetallicArtificialforScientificResearch on Priority Areas from the Superlattice"of (No.
PY - 1994
Y1 - 1994
N2 - We investigated the magnetization process in Co/Pt/Gd/Pt multilayer films in order to study the indirect exchange coupling between Co and Gd through Pt. Normal spin-flop behavior was observed in samples with a Pt layer thickness tpt<10Å. On the other hand, a novel hysteresis loop with “negative coercivity” was observed for tPt>10Å. This loop is considered to be due to the combined effect of the antiferromagnetic coupling between the Co and Gd layers, and the large magnetic anisotropy acting on the Co layer magnetization. The calculated magnetization curves agree well with experimental results. The antiferromagnetic coupling strength estimated from a comparison of calculations and experiment decays in an oscillating manner with increasing tPt.
AB - We investigated the magnetization process in Co/Pt/Gd/Pt multilayer films in order to study the indirect exchange coupling between Co and Gd through Pt. Normal spin-flop behavior was observed in samples with a Pt layer thickness tpt<10Å. On the other hand, a novel hysteresis loop with “negative coercivity” was observed for tPt>10Å. This loop is considered to be due to the combined effect of the antiferromagnetic coupling between the Co and Gd layers, and the large magnetic anisotropy acting on the Co layer magnetization. The calculated magnetization curves agree well with experimental results. The antiferromagnetic coupling strength estimated from a comparison of calculations and experiment decays in an oscillating manner with increasing tPt.
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U2 - 10.1109/TJMJ.1994.4565975
DO - 10.1109/TJMJ.1994.4565975
M3 - Article
AN - SCOPUS:84939698862
VL - 9
SP - 164
EP - 170
JO - IEEE translation journal on magnetics in Japan
JF - IEEE translation journal on magnetics in Japan
SN - 0882-4959
IS - 6
ER -