Photoemission Study of Bi 2 Nd 0.5 Ca 2.5 Cu 2 O y and Bi 2 (La,Pr) 0.5 Ca 2.5 Cu 2 O y Superconductors
作者： Kazuto Ikeda , Fumio Munakata , Rittaporn Itti , Takashi Kawano , H. Yamauchi
DOI: 10.1007/978-4-431-68141-0_18
关键词: X-ray photoelectron spectroscopy 、 Analytical chemistry 、 Doping 、 Superconductivity 、 Oxygen 、 Spectral line 、 Energy transfer 、 Materials science 、 Electron 、 Charge (physics)
摘要: X-ray photoelectron spectra (XPS) of Cu 2p have been studied for oxygen- and air-sintered samples Bi2(La,Pr)0.5Ca2.5Cu2Oy Bi2Nd0.5Ca2.5Cu2Oy. We estimated the number 3d electrons, n d , charge transfer energy, Δ, from these results. point out possibility that difference T C between compounds with same doped hole concentrations is associated . The role – O2p in superconductivity discussed.
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