Preparation and Magnetism of Multilayered Fe/AlN Prepared by Rf-sputter Deposition.

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  • 磁性材料の化学　Ｉ　高周波スパッタ法によるＦｅ／ＡｌＮ積層膜の作製と磁性
  • コウシュウハ スパッタホウ ニヨル Fe AlN セキソウ マク ノ サクセイ

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Abstract

Four kinds of Fe metal/A1N multilayered thin films were deposited by rf-sputter deposition at room temperature. Both Fe and AIN layers have almost the same thickness and their total film thikness was about 1u m. They have stacking sequences of 1, 3, 8 and 35 times, respectively. They showed an anisotropic magnetic behavior; soft ferromagnetic and mostly paramagnetic when a magnetic field was applied along and vertically against the film surface, respectively. Larger saturation magnetization in 10 to 20% than that of α-Fe was observed on the multilayers in the 3 and the 8 times stacking. Larger internal magnetic field component in about 10% than that of α-Fe was present in Mossbauer spectra for these films. Formation of both iron nitride and aluminum metal were detected at the interface of the multilayers by XAFS, Mössbauer spectrocopy and XPS even though the films were prepared at room temperature.

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