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金属学报  1994, Vol. 30 Issue (4): 160-163    
  论文 本期目录 | 过刊浏览 |
Ar~(+)混合Fe-Dy多层膜的结构及性能
李胜利;王佩璇;阎凤章;马如璋
北京科技大学;北京师范大学;北京科技大学
STRUCTURE AND PROPERTIES OF Fe-Dy MULTILAYER IMPLANTED WITH Ar~(+)
LI Shengli;WANG Peixuan (University of Scicnce and Technology Beijing); YAN Fengzhang (Beijing Normal University); MA Ruzhang(University of Science and Technology Beijing)(Manuscript received 28 April;1993)
引用本文:

李胜利;王佩璇;阎凤章;马如璋. Ar~(+)混合Fe-Dy多层膜的结构及性能[J]. 金属学报, 1994, 30(4): 160-163.
, , , . STRUCTURE AND PROPERTIES OF Fe-Dy MULTILAYER IMPLANTED WITH Ar~(+)[J]. Acta Metall Sin, 1994, 30(4): 160-163.

全文: PDF(314 KB)  
摘要: 用真空双源蒸镀法在Si单晶衬底上制备了Fe,Dy原子数比为3:2的Fe─Dy成分调制多层膜.用AES、RBS、X射线衍射(XRD)以及磁性测量分析了Ar~(+)混合前后Fe─Dy多层膜的相交.Ar~(+)离子注入能量110keV,剂量5×10~(15)─1×10~(17)/cm~2.结果表明,注入剂量为1×10~(17)/cm~2时,Fe,Dy完全混合,并且由晶态的Fe,Dy完全转变为Fe_(60)Dy_(40)(近似于该化学配比)的非晶态合金,随Ar~(+)注入量的增加,Fe一Dy多层膜的M_s下降,在剂量50×10~(15)/cm~2时下降幅度最大。
关键词 Fe─Dy多层膜离子束混合非晶化磁性    
Abstract:Compositionally modulated Fe-Dy films were prepared by alternate evaporation of the two elements onto Si single crystal substrates. Atomic ratio (Fe:Dy) of the film is about 3: 2. Auger electron spectrometry (AES), Rutherford backscattering spectrometry (RBS), X-ray diffraction (XRD), and measurements of magnetic properties were used to study the changes of the films after Ar ion beam mixing.The ion energy and the dose range were 110 keV and 5×10~15-1×10~(17)cm~(-2); respectively. It was found that, complete mixing of the films can be achieved at an ion fluence of1×10~(17)cm~(-2). At this point, the films transformed from a mixture of crystals to an amorphous alloy completely. The saturation magnetization M_s of the films decreases after ion beam mixing. In particular, M_s drops sharply for the ion fluences being equal to or less than 5 × 10~15 cm~-2.Correspondent: WANG Peixuan, professor,Department of Material Physics, University of Seience and Taohnology Beijing, Beijing 100083
Key words Fe-Dy multilayer films. ion beam mixing    amorpohization    magnetic property.
收稿日期: 1994-04-18     
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