2018年5月1日
Polarization-dependent X-ray photoemission spectroscopy for High-Tc cuprate superconductors
Physica B: Condensed Matter
- 巻
- 536
- 号
- 開始ページ
- 843
- 終了ページ
- 846
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.physb.2017.09.024
- 出版者・発行元
- 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.
- ID情報
-
- DOI : 10.1016/j.physb.2017.09.024
- ISSN : 0921-4526
- SCOPUS ID : 85029225150