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標題: Fe/FeO/Fe/FeV Multilayers Characterized by Magnetometry and Polarized Neutron Reflectometry
作者: Sara J. Callori
Kai-Han Chao
Grace L. Causer
Béla Nagy
László F. Kiss
Attila Sulyok
László Bottyán
Ko-Wei Lin
Frank Klose
關鍵字: Nanomagnetics;magnetism in solids;magnetic thin films;exchange bias;polarized neutron reflectometry
Project: IEEE MAGNETICS LETTERS, Volume 8, 4102205
We use argon ion-bombardment during Fe layer deposition as a way to tailor the structural and magnetic properties of bilayer and multilayer systems containing Fe/FeV components. We present structural and magnetic results on Fe/FeV bilayer and Fe/Fe-oxide/Fe/FeV multilayer systems. Magnetization measurements were taken over a range of temperatures and show the expected ferromagnetic behavior for the Fe/FeV bilayer. The Fe/Fe-oxide/Fe/FeV multilayer demonstrates an enhanced coercivity and exchange bias at low temperatures, both due to the presence of the antiferromagnetic Fe-oxide layer. Polarized neutron reflectometry results (scattering length density depth profile and neutron spin asymmetry) were used to identify mixed interfacial layers resulting from ion-bombardment. These demonstrated a lower magnetic moment than bulk Fe layers and may undergo a reversal process that differs from non-mixed layers within the sample.
DOI: 10.1109/LMAG.2016.2628020
Appears in Collections:材料科學與工程學系

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