Changes in local surface structure and Sr depletion in Fe-implanted SrTiO3 (001)
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- 作者：O. Lobachevaa ; olobache@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Y.M. Yiub ; N. Chenc ; T.K. Shama ; b ; L.V. Goncharovaa ; b
- 关键词：XPS ; XANES ; Fe-doped SrTiO3 ; Ion implantation
- 刊名：Applied Surface Science
- 出版年：2017
- 出版时间：30 January 2017
- 年：2017
- 卷：393
- 期：Complete
- 页码：74-81
- 全文大小：2808 K
文摘
Fe ion implantation of SrTiO3 and post-implantation results in formation of Sr1-yTi1-xFex+yO3-δ phase.
In Sr1-yTi1-xFex+yO3-δ phase, Fe assumes Fe3+ oxidation state in the bulk and Fe2+ oxidation state in the near surface area.
FEFF9 calculations indicate that Fe ions can substitute both Ti and Sr sites.
Formation of Sr1-yTi1-xFex+yO3-δ phase is accompanied by Sr depletion in the near surface region.