| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
The objective of the present study is to search new quaternary Heuseler alloys with high spin polarization and to experimentally confirm the half-metallic electronic state. CoVMnAl and CrTiVAl alloys were fabricated and powder neutron diffraction experiments were performed in order to decide the atomic configuration. It is cleared that both alloys include a part of disordering and the results are different to the previous report. Furthermore, absorption x-ray spectroscopy and resonant inelastic x-ray scattering in magnetic field were experienced in SPring-8 with using Mn2VAl and Co2MnSi single crystals, that are typical materials as the half-metallic ferro-(ferri-)magnets. Obtained spectra are well reproduced by the simulated ones based on the density functional theory. It is said that these experiments are powerful tool to confirm the characteristic electronic state of the half-metallic materials.
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