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Effects of argon ion irradiation on structural and magnetic properties of Tb/Fe multilayers

机译:氩离子辐照对Tb / Fe多层膜结构和磁性的影响

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The effects of Ar-ion irradiation and thermal annealing on structural and magnetic properties of crystalline Tb/Fe multilayers have been studied using small-angle X-ray diffraction (SAXRD) and conversion electron Mossbauer spectrometry (CEMS). The mixing of layers Tb/Fe caused by irradiation with 360 KeV Ar ions and fluences exceeding 2 x 1015 Ar/cm(2) is clearly observed, which can be explained by the ballistic model. The mixing efficiency saturates at high fluences and it still remains a crystallized Fe part. At high fluences and after annealing at 873 K, the Tb/Fe interface exhibits magnetic properties of amorphous alloys. The crystalline terbium is found to be sensitive to the nuclear damage. (c) 2006 Elsevier B.V. All rights reserved.
机译:使用小角X射线衍射(SAXRD)和转换电子Mossbauer光谱仪(CEMS)研究了Ar离子辐照和热退火对晶体Tb / Fe多层膜的结构和磁性的影响。可以清楚地观察到由360 KeV Ar离子辐照引起的Tb / Fe层混合,以及通量超过2 x 1015 Ar / cm(2),这可以通过弹道模型来解释。混合效率在高通量下达到饱和,并且仍然保留着结晶的Fe部分。在高通量下和在873 K退火后,Tb / Fe界面表现出非晶态合金的磁性。发现结晶ter对核损伤敏感。 (c)2006 Elsevier B.V.保留所有权利。

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