[17p-P10-1~93] 10 Spintronics and Magnetics（Poster）

[17p-P10-45] X-ray absorption fine structure analysis of Ir-doped a-Fe₂O₃

〇Tomohiro Nozaki¹, Satya Prakash Pati¹, Yohei Shiokawa¹, Motohiro Suzuki², Ko Mibu³, Muftah Al-Mahdawi¹, Sujun Ye¹, Masashi Sahashi^1,4 (1.Tohoku Univ., 2.JASRI, 3.Nagoya Inst. Tech., 4.ImPACT)

Keywords:antiferromagnet, X-ray absorption fine structure, Oxide

Fe₂O₃ is an antiferromagnet which has spin reorientation transition referred to Morin transition. In the past, we demonstrated enhancement of Morin transition temperature of Fe₂O₃film from 260K to above 400K by a tiny amount of Ir-doping. In order to clarify the mechanism of the drastic enhancement, in this study we investigate the chemical state of Ir-doped Fe₂O₃ film from Mossbauer spectroscopy and X-ray absorption fine structure (XAFS) measurements.