Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/84915
標題: Exchange bias effects of NiFe/NiO bilayers through ion-beam bombardment on the NiO surface
關鍵字: Exchange bias
Ion-beam bombardment
Magnetic thin films
摘要: The influence of ion-beam bombardment of the NiO surface on the exchange bias behavior of NiFe/NiObilayers was systemically investigated with different bombardment energies and durations. The resultsshow that by varying the bombardment energies, different crystallographic orientations are created whichmodifies the NiO spin structures. This results in the changes in the coupling type in NiO when it is in contactwith the NiFe layer. The NiFe/NiO bilayers exhibited either enhanced or decreased exchange bias filed,depending on the uncompensated moments or misaligned NiO spin created by ion-beam bombardment.The variations in coercivities of NiFe/NiO bilayers imply that the NiO anisotropy could be tuned by ionbeambombardment.
URI: http://hdl.handle.net/11455/84915
文章連結: http://dx.doi.org/10.1016/j.surfcoat.2012.05.035
Appears in Collections:材料科學與工程學系

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