2014年
Electronic structure of ilmenite and ilmenite-hematite solid solution using hard X-Ray photoemission spectroscopy
Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
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- 巻
- 61
- 号
- 1
- 開始ページ
- S57
- 終了ページ
- S59
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.2497/jjspm.61.S57
- 出版者・発行元
- Journal of the Japan Society of Powder and Powder Metallurgy
We have conducted hard X-ray photoemission spectroscopy on FeTiO 3 and FeTiO3-Fe2O3 solid solution in order to examine the electronic structure and electrical conduction mechanism of the compounds. The valence band spectrum of FeTiO3-Fe2O3 solid solution manifests a clear peak shift compared to FeTiO3, indicating that the electronic structure of FeTiO3-Fe2O3 solid solution consists of strongly mixed Fe 3d and O 2p components and that the electron correlation of the Fe 3d components is varied by the formation of solid solution between FeTiO3 and a-Fe2O3. We propose that insulating FeTiO3 is converted into semiconductor via this mechanism by the formation of FeTiO3-Fe2O3 solid solution, and the electron transfer between Fe2+ and Fe3+ in C-plane dominantly contributes to the electrical conduction in FeTiO3-Fe2O3 solid solution.
- リンク情報
- ID情報
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- DOI : 10.2497/jjspm.61.S57
- ISSN : 0532-8799
- SCOPUS ID : 84904905113