Valence instability and photochemical reaction at surface of strongly correlated MgTi2O4

H. Fujiwara; Y. Ishige; T. Mizokawa; T. Sasaki; M. Isobe; Y. Ueda

doi:10.1063/1.4818355

Valence instability and photochemical reaction at surface of strongly correlated MgTi₂O₄

H. Fujiwara, Y. Ishige, T. Mizokawa^*, T. Sasaki, M. Isobe, Y. Ueda

^*この研究の対応する著者

研究成果: Article › 査読

6 被引用数 (Scopus)

抄録

We have studied surface electronic structure and light illumination effect of spinel-type MgTi₂O₄ with Ti³⁺(d¹) electronic configuration. Ti⁴⁺ species are found at surfaces of MgTi₂O₄, which show photo-induced effect similar to the Ti⁴⁺-oxide semiconductors with surface depletion layer. MgTi ₂O₄ with the surface Ti⁴⁺ states reacts with water for H₂ emission, which is largely enhanced by light illumination.

本文言語	English
論文番号	022110
ジャーナル	APL Materials
巻	1
号	2
DOI	https://doi.org/10.1063/1.4818355
出版ステータス	Published - 2013 8月
外部発表	はい

ASJC Scopus subject areas

材料科学（全般）
工学（全般）

文献へのアクセス

10.1063/1.4818355

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引用スタイル

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title = "Valence instability and photochemical reaction at surface of strongly correlated MgTi2O4",

abstract = "We have studied surface electronic structure and light illumination effect of spinel-type MgTi2O4 with Ti3+(d1) electronic configuration. Ti4+ species are found at surfaces of MgTi2O4, which show photo-induced effect similar to the Ti4+-oxide semiconductors with surface depletion layer. MgTi 2O4 with the surface Ti4+ states reacts with water for H2 emission, which is largely enhanced by light illumination.",

author = "H. Fujiwara and Y. Ishige and T. Mizokawa and T. Sasaki and M. Isobe and Y. Ueda",

note = "Funding Information: The authors would like to thank valuable discussions with D. I. Khomskii. A part of this work is supported by Toray Science Foundation.",

year = "2013",

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doi = "10.1063/1.4818355",

language = "English",

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AU - Fujiwara, H.

AU - Ishige, Y.

AU - Mizokawa, T.

AU - Sasaki, T.

AU - Isobe, M.

AU - Ueda, Y.

N1 - Funding Information: The authors would like to thank valuable discussions with D. I. Khomskii. A part of this work is supported by Toray Science Foundation.

PY - 2013/8

Y1 - 2013/8

N2 - We have studied surface electronic structure and light illumination effect of spinel-type MgTi2O4 with Ti3+(d1) electronic configuration. Ti4+ species are found at surfaces of MgTi2O4, which show photo-induced effect similar to the Ti4+-oxide semiconductors with surface depletion layer. MgTi 2O4 with the surface Ti4+ states reacts with water for H2 emission, which is largely enhanced by light illumination.

AB - We have studied surface electronic structure and light illumination effect of spinel-type MgTi2O4 with Ti3+(d1) electronic configuration. Ti4+ species are found at surfaces of MgTi2O4, which show photo-induced effect similar to the Ti4+-oxide semiconductors with surface depletion layer. MgTi 2O4 with the surface Ti4+ states reacts with water for H2 emission, which is largely enhanced by light illumination.

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