May 1, 2018
Polarization-dependent X-ray photoemission spectroscopy for High-Tc cuprate superconductors
Physica B: Condensed Matter
- Volume
- 536
- Number
- First page
- 843
- Last page
- 846
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1016/j.physb.2017.09.024
- Publisher
- Elsevier B.V.
We have performed photon energy (hν) and linear polarization dependent X-ray photoemission for optimal doped Pb-Bi2Sr2CaCu2O8+δ (Bi2212) to investigate the ground Cu 3d orbital symmetry. We identified that the bulk Cu 3d components in valence-band spectra develop with decreasing hν from 7900 eV to 460 eV. Moreover, the photoelectron intensity ratio of the valence-band spectra measured at hν = 460 eV has shown that the Cu 3dx2−y2 orbital contributions are dominant near the Fermi level (EF). Meanwhile, we revealed that the bulk Cu 2p3/2 core-level spectra without the Bi 4s component is detected at hν = 1550 eV compared with hν and linear-polarization-dependent spectra.
- Link information
- ID information
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- DOI : 10.1016/j.physb.2017.09.024
- ISSN : 0921-4526
- SCOPUS ID : 85029225150