TY - JOUR
T1 - Resonance effect in ELNES from perovskite-type manganites BiMnO3 and LaMnO3
AU - Murakami, Yasukazu
AU - Shindo, Daisuke
AU - Kikuchi, Masae
AU - Zuo, Jianm Min
AU - Spence, John C.H.
N1 - Funding Information:
The authors are grateful to Dr T. Atou at Tohoku University for useful discussion on the crystal structure of BiMnO3and Dr Bin Jiang at Arizona State University for his collaboration. This work was partly supported by the Grant-in-Aid for Scientific Research on Priority Area and for Encouragement of Young Scientists (Y. Murakami) from the Ministry of Education, Culture, Sports, Science and Technology of Japan, and NSF grant number DMR9973894.
PY - 2002
Y1 - 2002
N2 - Fine structures in electron energy-loss spectra, observed 30-40 eV beyond the threshold of oxygen K-edges in perovskite-type manganites BiMnO3 and LaMnO3, are discussed. LaMnO3 with orthorhombic symmetry (space group Pbnm) shows a clear peak in this region. However, BiMnO3 with a heavily distorted perovskite-type structure (monoclinic, space group C2) does not show an appreciable peak. It is demonstrated that peaks in this energy region arise from the resonance effect of ejected core electrons and that the shape is sensitive to the environment of neighbouring oxygen atoms in the perovskite-type structures.
AB - Fine structures in electron energy-loss spectra, observed 30-40 eV beyond the threshold of oxygen K-edges in perovskite-type manganites BiMnO3 and LaMnO3, are discussed. LaMnO3 with orthorhombic symmetry (space group Pbnm) shows a clear peak in this region. However, BiMnO3 with a heavily distorted perovskite-type structure (monoclinic, space group C2) does not show an appreciable peak. It is demonstrated that peaks in this energy region arise from the resonance effect of ejected core electrons and that the shape is sensitive to the environment of neighbouring oxygen atoms in the perovskite-type structures.
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U2 - 10.1093/jmicro/51.2.99
DO - 10.1093/jmicro/51.2.99
M3 - Article
C2 - 12005169
AN - SCOPUS:0036233775
VL - 51
SP - 99
EP - 103
JO - Microscopy (Oxford, England)
JF - Microscopy (Oxford, England)
SN - 2050-5698
IS - 2
ER -