MnSbPt薄膜の誘電率テンソルと磁気光学効果

概要

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The mechanism of the enhancement of the MO Kerr rotation for Mn_<50>Sb_<44>Pt_6 film was investigated from the viewpoints of the phases and their components of the dielectric tensor. As a result, it was found that after annealing at 300℃, (1) for(Mnsb)_<50-0.5χ>Ptχ(χ<14 at%)films, the PtMnSb phase made a larger contribution to the ε^'_xy spectrum than would be expected from the Pt concentration (2) concerning the ε^'_xy at 2.3eV and 4.7eV, where the PtMnSb phase showed ε^'_xy structure, with increasing Pt concentration χ along the line of(MnSb)_<50-0.5χ>Pt_χ, the value of ε^'_xy at 4.7eV decreased monotonously, but the value of ε^'_xy at 2.3eV was maximum at χ=17at%, and (3) for the Mn_<50>Sb_<44>Pt_6 film, the maximum of θ_k, where ε^'_xy was relatively small originated from ε^'_xy
社団法人日本磁気学会の論文
1998-04-15