Atomic and magnetic structure of the heusler alloys NiMnSb and CoMnSb
A. SzytułaInstitute of Physics of the Jagiellonian University, CracowŽ. DimitrijevićInstitute of Nuclear Sciences, VinčaJelena TodorovićInstitute of Nuclear Sciences, VinčaA. KołodziejczykInstitute of Metallurgy of the Academy of Mining and Metallurgy, CracowJ. SzelagInstitute of Physics of the Jagiellonian University, CracowA. WanicInstitute of Nuclear Physics, Cracow
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Abstract
NiMnSb and CoMnSb alloys were studied using neutron diffraction, X-ray diffraction, and magnetometric techniques. The distribution of the constituent atoms over the four sublattices was found and at 77 °K the magnetic structure of the alloys was determined. In NiMnSb a magnetic moment of (3.85 ± 0.05) μB was found only on Mn atoms. In CoMnSb the moments were found on both transition metal atoms, (3.5 ± 0.1) μB on Mn and (0.3 ± 0.1) μB on Co. These moments are ferromagnetically coupled. [Russian text Ignored].
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