Quantitative analyses of oxidation states for cubic SrMnO3 and orthorhombic SrMnO2.5 with electron energy loss spectroscopy

S. Kobayashi; Y. Tokuda; T. Mizoguchi; N. Shibata; Y. Sato; Y. Ikuhara; T. Yamamoto

doi:10.1063/1.3520655

Quantitative analyses of oxidation states for cubic SrMnO₃ and orthorhombic SrMnO_2.5 with electron energy loss spectroscopy

S. Kobayashi, Y. Tokuda, T. Mizoguchi, N. Shibata, Y. Sato, Y. Ikuhara, T. Yamamoto

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

The oxidation state of Mn in cubic SrMnO₃ and orthorhombic SrMnO_2.5 was investigated by electron energy loss (EEL) spectroscopy. Change in the oxidation state of Mn produced some spectral changes in the O-K edge as well as in the Mn-L_2,3 edge EEL spectra. This study demonstrated that the oxidation ssstate of Mn and the amount of oxygen vacancies in cubic SrMnO₃ and orthorhombic SrMnO_2.5 could be quantified by analyzing the features of the O-K edge spectrum and the Mn L ₃ / L₂ ratio in the Mn-L_2,3 edge spectrum. Our quantitative analysis showed that the spectral changes in the Mn-L_2,3 edge were mainly caused by the oxidation state of Mn, whereas those in the O-K edge could be sensitive to both the oxidation state of Mn and to lattice distortions.

Original language	English
Article number	124903
Journal	Journal of Applied Physics
Volume	108
Issue number	12
DOIs	https://doi.org/10.1063/1.3520655
Publication status	Published - Dec 15 2010
Externally published	Yes

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Physics and Astronomy(all)

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10.1063/1.3520655

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@article{bb616b6da14e45a285afa376945406fe,

title = "Quantitative analyses of oxidation states for cubic SrMnO3 and orthorhombic SrMnO2.5 with electron energy loss spectroscopy",

abstract = "The oxidation state of Mn in cubic SrMnO3 and orthorhombic SrMnO2.5 was investigated by electron energy loss (EEL) spectroscopy. Change in the oxidation state of Mn produced some spectral changes in the O-K edge as well as in the Mn-L2,3 edge EEL spectra. This study demonstrated that the oxidation ssstate of Mn and the amount of oxygen vacancies in cubic SrMnO3 and orthorhombic SrMnO2.5 could be quantified by analyzing the features of the O-K edge spectrum and the Mn L 3 / L2 ratio in the Mn-L2,3 edge spectrum. Our quantitative analysis showed that the spectral changes in the Mn-L2,3 edge were mainly caused by the oxidation state of Mn, whereas those in the O-K edge could be sensitive to both the oxidation state of Mn and to lattice distortions.",

author = "S. Kobayashi and Y. Tokuda and T. Mizoguchi and N. Shibata and Y. Sato and Y. Ikuhara and T. Yamamoto",

note = "Funding Information: A part of this work was supported by the Grant-in-Aid for Scientific Research on Priority Areas “Nano Materials Science for Atomic-scale Modification 474” and Young Scientists (A) 22686059, from the Ministry of Education, Sports, and Technology (MEXT) of Japan, and this study was partially supported by {"}MACAN Grant No. 233484{"} project funded by European Framework Programme 7 (FP7).",

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doi = "10.1063/1.3520655",

language = "English",

volume = "108",

journal = "Journal of Applied Physics",

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T1 - Quantitative analyses of oxidation states for cubic SrMnO3 and orthorhombic SrMnO2.5 with electron energy loss spectroscopy

AU - Kobayashi, S.

AU - Tokuda, Y.

AU - Mizoguchi, T.

AU - Shibata, N.

AU - Sato, Y.

AU - Ikuhara, Y.

AU - Yamamoto, T.

N1 - Funding Information: A part of this work was supported by the Grant-in-Aid for Scientific Research on Priority Areas “Nano Materials Science for Atomic-scale Modification 474” and Young Scientists (A) 22686059, from the Ministry of Education, Sports, and Technology (MEXT) of Japan, and this study was partially supported by "MACAN Grant No. 233484" project funded by European Framework Programme 7 (FP7).

PY - 2010/12/15

Y1 - 2010/12/15

N2 - The oxidation state of Mn in cubic SrMnO3 and orthorhombic SrMnO2.5 was investigated by electron energy loss (EEL) spectroscopy. Change in the oxidation state of Mn produced some spectral changes in the O-K edge as well as in the Mn-L2,3 edge EEL spectra. This study demonstrated that the oxidation ssstate of Mn and the amount of oxygen vacancies in cubic SrMnO3 and orthorhombic SrMnO2.5 could be quantified by analyzing the features of the O-K edge spectrum and the Mn L 3 / L2 ratio in the Mn-L2,3 edge spectrum. Our quantitative analysis showed that the spectral changes in the Mn-L2,3 edge were mainly caused by the oxidation state of Mn, whereas those in the O-K edge could be sensitive to both the oxidation state of Mn and to lattice distortions.

AB - The oxidation state of Mn in cubic SrMnO3 and orthorhombic SrMnO2.5 was investigated by electron energy loss (EEL) spectroscopy. Change in the oxidation state of Mn produced some spectral changes in the O-K edge as well as in the Mn-L2,3 edge EEL spectra. This study demonstrated that the oxidation ssstate of Mn and the amount of oxygen vacancies in cubic SrMnO3 and orthorhombic SrMnO2.5 could be quantified by analyzing the features of the O-K edge spectrum and the Mn L 3 / L2 ratio in the Mn-L2,3 edge spectrum. Our quantitative analysis showed that the spectral changes in the Mn-L2,3 edge were mainly caused by the oxidation state of Mn, whereas those in the O-K edge could be sensitive to both the oxidation state of Mn and to lattice distortions.

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Quantitative analyses of oxidation states for cubic SrMnO₃ and orthorhombic SrMnO_2.5 with electron energy loss spectroscopy

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