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Co基Heusler合金:磁性、半金属性,sp元素掺杂及在磁隧道结中的应用和发展 被引量：7

Co-based Heusler Alloy: Magnetism and Half-metallicity,sp-Element Doping Effect,Application and Development in Magnetic Tunneling Junctions
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摘要 首先致力于介绍Co基Heusler合金的结构特征、磁性来源以及独特的半金属能带结构,以揭示这些合金独特的电磁性质和在磁隧道结中的应用潜力。在此基础上,进一步讨论了sp元素掺杂对调整Heusler合金电子结构和稳定其半金属性的重要意义。最后,通过分析Co基Heusler合金磁隧道结的电子输运原理,描述了Co基Heu-sler合金磁隧道结的研究现状和发展方向。 Firstly, the structure, magnetism and novel half-metallic energy bands of Co-based Heusler alloy are introduced in order to reveal its special electronic and magnetic characteristics, and potential application in magnetic tunneling junctions （MTJs）. Moreover, a further discussion about the significance of sp-element doping effect on ad- justing electronic structure and stabilizing half-metallicity of Heusler alloys is also provided. Finally, electron trans- port mechanism in Co-based Heusler MTJs is analyzed, and their corresponding studies and developments are presented.
作者 吴波 杨秀德 张颂
机构地区 合肥师范学院物理系 西南大学物理科学与技术学院 凯里学院数理学院
出处 《材料导报》 EI CAS CSCD 北大核心 2012年第21期101-107,141,共8页 Materials Reports
基金 贵州省<理论物理>重点学科资助([2011]275) 合肥市科技研究发展项目(遵市科合社字[2010]08号)
关键词 Co基Heusler合金 半金属性 磁隧道结 态密度 Co-based Heusler alloy, half-metallicity, magnetic tunneling junction （MTJ）, density of state （DOS）
分类号 O469 [理学—凝聚态物理] O482 [理学—固体物理]
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参考文献46

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同被引文献41

  • 1潘志军,张澜庭,吴建生.CoSi电子结构第一性原理研究[J].物理学报,2005,54(1):328-332. 被引量：7
  • 2赵建华,邓加军,郑厚植.稀磁半导体的研究进展[J].物理学进展,2007,27(2):109-150. 被引量：35
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  • 6WURMEHL S,FECHER G H,KANDPAL H C,et al.Geometric,electronic and magnetic structure of Co2Fe Si:Curie temperature,magnetic moment measurements and calculations[J].Phys Rev B,2005,72(18):18443-18452.
  • 7FECHER G H,KANDPAL H C,KSENOFONTOV V,et al.Investigation of Co2Fe Si:the heusler compound with highest curie temperature and magnetic moment[J].Appl Phys Lett,2006,88(3):032503-032511.
  • 8KANDPAL H C,FECHER G H,FELSER C,et al.Correlation in the transition-metal-based Heusler compounds Co2Mn Si and Co2Fe Si[J].Phys Rev B,2006,73(9):094422-094445.
  • 9?ZDO?AN K,?A?IO?LU E,AKTA?B,et al.Doping and disorder in the Co2Mn Al and Co2Mn Ga half-metallic Heusler alloys[J].Phys Rev B,2006,74(17):172412-172415.
  • 10GALANAKIS I,DEDERICHS P H,PAPANIKOLAOU N.Slater-pauling behavior and origin of the half-metallicity of the full-Heusler alloys[J].Phys Rev B,2002,66(17):174429-174438.

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材料导报
2012年 第21期

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