TY - JOUR
T1 - XPS study on the preferential site occupations of Bi, Sr and Ca ions in Bi2Sr2CaCu2O8+d superconductors prepared by LPE method
AU - Wakamatsu, K.
AU - Oikawa, Y.
AU - Enomoto, H.
AU - Shin, J. S.
AU - Uchida, E.
AU - Ozaki, H.
PY - 1994/12
Y1 - 1994/12
N2 - XPS measurements were performed on the Bi2Sr2CaCu2O8+d system prepared by the LPE method using melts with compositions Bi:Sr:Ca:Cu = (2 - x) : 2 : (1 + x) : 2 for 0 ≤ x ≤ 0.2. The peak decompositions of Sr3d and Ca2p XPS spectra, together with the EPMA results, elucidated the occupancies of Bi, Sr and Ca atoms on the BiO-, SrO- and Ca-layers. The x dependences of the lattice parameter c and the superconducting critical temperature Tc are explained by the changes of the excess oxygens in the BiO layer.
AB - XPS measurements were performed on the Bi2Sr2CaCu2O8+d system prepared by the LPE method using melts with compositions Bi:Sr:Ca:Cu = (2 - x) : 2 : (1 + x) : 2 for 0 ≤ x ≤ 0.2. The peak decompositions of Sr3d and Ca2p XPS spectra, together with the EPMA results, elucidated the occupancies of Bi, Sr and Ca atoms on the BiO-, SrO- and Ca-layers. The x dependences of the lattice parameter c and the superconducting critical temperature Tc are explained by the changes of the excess oxygens in the BiO layer.
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U2 - 10.1016/0921-4534(94)91567-9
DO - 10.1016/0921-4534(94)91567-9
M3 - Article
AN - SCOPUS:26344470704
SN - 0921-4534
VL - 235-240
SP - 687
EP - 688
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - PART 1
ER -