Changes in local surface structure and Sr depletion in Fe-implanted SrTiO<sub>3</sub> (001)

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Changes in local surface structure and Sr depletion in Fe-implanted SrTiO₃ (001)

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作者：O. Lobacheva^a ; ^{olobache@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Y.M. Yiu^b ; N. Chen^c ; T.K. Sham^a ; ^b ; L.V. Goncharova^a ; ^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 Sr_1-yTi_1-xFe_x+yO_3-δ phase.
•: In Sr_1-yTi_1-xFe_x+yO_3-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 Sr_1-yTi_1-xFe_x+yO_3-δ phase is accompanied by Sr depletion in the near surface region.

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