TY - JOUR
T1 - Effect of local coordination of Mn on Mn-L2,3 edge electron energy loss spectrum
AU - Nishida, Shuji
AU - Kobayashi, Shunsuke
AU - Kumamoto, Akihito
AU - Ikeno, Hidekazu
AU - Mizoguchi, Teruyasu
AU - Tanaka, Isao
AU - Ikuhara, Yuichi
AU - Yamamoto, Takahisa
N1 - Funding Information:
This study was supported by a Grant-in-Aid for Scientific Research (Grants Nos. 22686059, 23656395, and 24760537) from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) and Scientific Research on Innovative Areas “Nano Informatics” (grant number 25106003, 25106004, 25106005) from JSPS of Japan and the special fund (Sentei Kenkyu: No. 5504850103) in Institute of Industrial Science, University of Tokyo. A part of this work was conducted in Research Hub for Advanced Nano Characterization, The University of Tokyo, under the support of "Nanotechnology Platform"(project No.12024046) of the Ministry of Education, Culture, Sports, Science and Technology(MEXT), Japan. Some calculations were performed by a supercomputing system at the Institute of Solid State Physics (ISSP), University of Tokyo. S.K. was supported as a Japan Society for the Promotion of Science (JSPS) research fellow.
PY - 2013/8/7
Y1 - 2013/8/7
N2 - The effects of the local coordination environment of Mn ions in perovskite manganese oxides on the Mn-L2,3 edge electron energy loss (EEL) spectra was experimentally and theoretically investigated. The Mn-L 2,3 edge EEL spectra were observed for various perovskite manganese oxides, including YMnO3, LaMnO3, BaMnO3, SrMnO3, and CaMnO3, in which the Mn ions have different valence states and local coordination. The experiment revealed that the Mn L3/L2 ratio is influenced not only by the valence state but also by the local environment of the Mn ions. Furthermore, compared to the Mn L3/L2 ratios of Mn3+ compounds, the Mn L3/L2 ratios of the Mn4+ compounds are found to be much more sensitive to local distortions. The ab-initio multiplet calculation of the Mn-L2,3 edge EEL spectra revealed that the effects of local coordination on the spectral features are dependent on the local electronic structures of the Mn ions. These findings indicate that the valence state as well as the local environments of the Mn ions can be unraveled by combining experimental and theoretical investigations of Mn-L2,3 edge EEL spectra.
AB - The effects of the local coordination environment of Mn ions in perovskite manganese oxides on the Mn-L2,3 edge electron energy loss (EEL) spectra was experimentally and theoretically investigated. The Mn-L 2,3 edge EEL spectra were observed for various perovskite manganese oxides, including YMnO3, LaMnO3, BaMnO3, SrMnO3, and CaMnO3, in which the Mn ions have different valence states and local coordination. The experiment revealed that the Mn L3/L2 ratio is influenced not only by the valence state but also by the local environment of the Mn ions. Furthermore, compared to the Mn L3/L2 ratios of Mn3+ compounds, the Mn L3/L2 ratios of the Mn4+ compounds are found to be much more sensitive to local distortions. The ab-initio multiplet calculation of the Mn-L2,3 edge EEL spectra revealed that the effects of local coordination on the spectral features are dependent on the local electronic structures of the Mn ions. These findings indicate that the valence state as well as the local environments of the Mn ions can be unraveled by combining experimental and theoretical investigations of Mn-L2,3 edge EEL spectra.
UR - http://www.scopus.com/inward/record.url?scp=84882286108&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84882286108&partnerID=8YFLogxK
U2 - 10.1063/1.4817425
DO - 10.1063/1.4817425
M3 - Article
AN - SCOPUS:84882286108
VL - 114
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 5
M1 - 054906
ER -