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Role of Defects and Disorder in the Half-Metallic Full-Heusler Compounds

  • I. Galanakis
  • K. Özdog̃an
  • E. Şaşiog̃lu
Part of the Springer Proceedings in Physics book series (SPPHY, volume 122)

Summary

Half-metallic ferromagnets and especially the full-Heusler alloys containing Co are at the center of scientific research because of their potential applications in spintronics. For realistic devices, it is important to control accurately the creation of defects in these alloys. We review some of our late results on the role of defects and impurities in these compounds. More precisely we present results for the following cases (1) doping and disorder in Co2Cr(Mn)Al(Si) alloys, (2) half-metallic ferrimagnetism appeared due to the creation of Cr(Mn) antisites in these alloys, (3) Co-doping in Mn2VAl(Si) alloys leading to half-metallic antiferromagnetism, and finally (4) the occurrence of vacancies in the full-Heusler alloys containing Co and Mn. These results are susceptible of encouraging further theoretical and experimental research in the properties of these compounds.

Keywords

Heusler Alloy Spin Moment Total Spin Moment Perfect Site 2MnAl Alloy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • I. Galanakis
    • 1
  • K. Özdog̃an
    • 2
  • E. Şaşiog̃lu
    • 3
    • 4
  1. 1.Department of Materials Science, School of Natural SciencesUniversity of PatrasPatraGreece
  2. 2.Department of PhysicsGebze Institute of Technology, GebzeKocaeliTurkey
  3. 3.Institut für FestkörperforschungForschungszentrum JülichJülichGermany
  4. 4.Physics DepartmentFatih UniversityBüyükçekmece, İstanbulTurkey

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