[15p-PA01-1~58] 10 Spintronics and Magnetics (Poster)

[15p-PA01-37] Magnetic circular dichroism (MCD) spectral analysis of composition-graded thin films of (Fe₈₆Co₁₄)_1-xAg_x

〇(B)Kazuyasu Murayama¹, Takahiro Yamazaki¹, Alexandre Lira Foggiatto¹, Varun Kumar Kushwaha², Yuya Sakuraba², Yuma Iwasaki², Yoshinori Kotani³, Masato Kotsugi¹ (1.Tokyo Univ. of Sci., 2.NIMS, 3.JASRI)

Keywords:Magnetic circular dichroism (MCD)

Magnetic circular dichroism (MCD) spectra of composition-graded films of (Fe₈₆Co₁₄)_1-xAg_x, which is half-metallic in the disordered A2 structure, have been obtained. The spin and orbital magnetic moments were quantitatively calculated by analyzing the MCD spectra using the magnetic sum rule. The composition dependence of these values was clarified, and the relationship with the spin polarization rate was discussed by focusing on the electronic structure.