Soft X-ray absorption and photoemission studies of ferromagnetic Mn-implanted 3-SiC

強磁性を示すMn注入3-SiCの軟X線吸収分光及び光電子分光

Song, G.*; 小林 正起*; Hwang, J. I.*; 片岡 隆*; 滝沢 優*; 藤森 淳; 大河内 拓雄; 竹田 幸治   ; 岡根 哲夫  ; 斎藤 祐児  ; 山上 浩志; 高野 史好*; 秋永 広幸*

Song, G.*; Kobayashi, Masaki*; Hwang, J. I.*; Kataoka, Takashi*; Takizawa, Masaru*; Fujimori, Atsushi; Okochi, Takuo; Takeda, Yukiharu; Okane, Tetsuo; Saito, Yuji; Yamagami, Hiroshi; Takano, Fumiyoshi*; Akinaga, Hiroyuki*

We have performed X-ray photoemission spectroscopy (XPS), X-ray absorption spectroscopy (XAS), and resonant photoemission spectroscopy (RPES) measurements of Mn-implanted 3-SiC (3-SiC:Mn) and carbon-incorporated MnSi (MnSi:C). The Mn 2 core-level XPS and XAS spectra of 3-SiC:Mn and MnSi:C were similar to each other and showed "intermediate" behaviors between the localized and itinerant Mn 3 states. The intensity at the Fermi level was found to be suppressed in 3-SiC:Mn compared with MnSi:C. These observations are consistent with the formation of MnSi:C clusters in the 3-SiC host, as observed in a recent transmission electron microscopy study.