Zusammenfassung
Electronic structures of Heusler alloys Co2MnZ (Z=sp elements) were
calculated to search half-metallic compounds. In this paper, it will
be shown that stoichiometric compounds Co2MnZ are half-metallic when
Z is Si and Ge. Considering the effect of Z atom on the band structure,
we can predict that there are half-metallic compounds in nonstoichiometric
compounds Co2MnZ1-xZx' and that the position of the Fermi level is
adjustable in the energy gap of the minority-spin state by changing
the composition x.
Nutzer