TY - JOUR
T1 - Site dependence and peak assignment of Y Ba2 Cu3 O7-x O K -edge electron energy loss near-edge fine structure
AU - Mizoguchi, Teruyasu
AU - Varela, Maria
AU - Buban, James P.
AU - Yamamoto, Takahisa
AU - Ikuhara, Yuichi
PY - 2008/1/9
Y1 - 2008/1/9
N2 - The different peaks in the O K -edge near-edge fine structure of Y Ba2 Cu3 O7-x are interpreted here by using overlap population diagram. This study identifies the peaks in the spectrum as follows: (1) the first peak purely originates from O-Cu interactions, (2) the contributions from Y, Ba, and Cu are comparable at the second and third peaks, (3) and the fourth peak has the largest O-Cu interactions. Therefore, the first and/or fourth peaks and second and/or third peaks can be sensitive to the changes in the atomic and electronic structure at Cu and Y Ba sites, respectively. The spectral differences depending on the atomic site are also discussed.
AB - The different peaks in the O K -edge near-edge fine structure of Y Ba2 Cu3 O7-x are interpreted here by using overlap population diagram. This study identifies the peaks in the spectrum as follows: (1) the first peak purely originates from O-Cu interactions, (2) the contributions from Y, Ba, and Cu are comparable at the second and third peaks, (3) and the fourth peak has the largest O-Cu interactions. Therefore, the first and/or fourth peaks and second and/or third peaks can be sensitive to the changes in the atomic and electronic structure at Cu and Y Ba sites, respectively. The spectral differences depending on the atomic site are also discussed.
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U2 - 10.1103/PhysRevB.77.024504
DO - 10.1103/PhysRevB.77.024504
M3 - Article
AN - SCOPUS:38049187583
SN - 0163-1829
VL - 77
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 2
M1 - 024504
ER -