节点文献
L10结构金属间化合物空位形成能
Vacancy formation energy of intermetallic with L10 structure
【摘要】 L10结构CoPt和FePt薄膜因其高磁各向异性而成为新一代超高磁记录密度材料.采用M iedema理论计算了多种L10结构金属间化合物的空位形成能.研究结果表明:在这些金属间化合物中可能形成的空位类型,如FeN i和MnN i合金中易形成N i空位;FePt和FePd合金中易形成Fe空位;CoPt合金中易形成Co空位;N iPt合金中易形成N i空位;MnPt合金中易形成Pt空位;MnPd和MnHg合金中易形成Mn空位;MnRh合金中易形成Rh空位.这一研究结果为进一步研究开发高性能的磁性薄膜提供了理论依据.
【Abstract】 Equiatomic CoPt and FePt alloy films with the L10-ordered structure have been attractive as ultrahigh-density magnetic recording media.The vacancy formation energies of some intermetallics with L10-ordered structure were calculated by Miedema′s theory.The types of structural vacancy in the intermetallics were discussed.The Ni vacancy is easy formed in FeNi.The type of structural vacancy in FePt and FePd is the Fe vacancy.The Co vacancy is easy formed in CoPt.The Ni vacancy is easy formed in NiPt.The Pt vacancy is easy formed in MnPt.The type of structural vacancy in MnNi is the Ni vacancy.The Mn vacancy is easy formed in MnPd and MnHg.The Rh vacancy is easy formed in MnRh.This research is provided the reference in researching ultrahigh-density magnetic recording films.
【Key words】 intermetallic compound structure； defects； magnetic recording materials；
- 【文献出处】 北京航空航天大学学报 ,Journal of Beijing University of Aeronautics and Astronautics , 编辑部邮箱 ,2006年10期
- 【分类号】TB383.2
- 【被引频次】8
- 【下载频次】261