首页|Evolution of magnetic properties and damping coefficient of Co2MnSi Heusler alloy with Mn/Si and Co/Mn atomic disorder
Evolution of magnetic properties and damping coefficient of Co2MnSi Heusler alloy with Mn/Si and Co/Mn atomic disorder
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NSTL
Iop Publishing Ltd
Ferromagnetic resonance has been used to investigate the effect of a Mn/Si and a Co/Mn atomic disorder on the magnetic properties and dynamic relaxation of Co2MnSi Heusler alloy. He+ ion irradiation at 150 KeV is used to induce a Co/Mn and Mn/Si swap in the initial structure of the material. While a Mn/Si disorder is found to show similar magnetic behavior as compared to the L21 order, we observe a strong impact of a Co/Mn swap on the static and dynamic properties of the alloy. These results are explained with regard to electronic band structure and damping coefficient first-principles calculations showing the modification of the minority-spin density of states at the Fermi energy and local magnetic orbital moment with Co/Mn swap.
NSTL
Iop Publishing Ltd
