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Polarization-dependent X-ray photoemission spectroscopy for High-T^sub c^ cuprate superconductors
We have performed photon energy (hv) 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 hv from 7900 eV to 4...
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Published in: | Physica. B, Condensed matter Condensed matter, 2018-05, Vol.536, p.843 |
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creator | Yamagami, Kohei Kanai, Yuina Naimen, Sho Fujiwara, Hidenori Kiss, Takayuki Tanaka, Arata Higashiya, Atsushi Imada, Shin Kadono, Toshiharu Tamasaku, Kenji Muro, Takayuki Yabashi, Makina Ishikawa, Tetsuya Eisaki, Hiroshi Miyasaka, Shigeki Tajima, Setsuko Sekiyama, Akira |
description | We have performed photon energy (hv) 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 hv from 7900 eV to 460 eV. Moreover, the photoelectron intensity ratio of the valence-band spectra measured at hv = 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 hv = 1550 eV compared with hv and linear-polarization-dependent spectra. |
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B, Condensed matter</jtitle><date>2018-05-01</date><risdate>2018</risdate><volume>536</volume><spage>843</spage><pages>843-</pages><issn>0921-4526</issn><eissn>1873-2135</eissn><abstract>We have performed photon energy (hv) 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 hv from 7900 eV to 460 eV. Moreover, the photoelectron intensity ratio of the valence-band spectra measured at hv = 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 hv = 1550 eV compared with hv and linear-polarization-dependent spectra.</abstract><cop>Amsterdam</cop><pub>Elsevier BV</pub></addata></record> |
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subjects | Band spectra Crystal structure Linear polarization Photoelectric emission Spectrum analysis Superconductivity Superconductors Temperature |
title | Polarization-dependent X-ray photoemission spectroscopy for High-T^sub c^ cuprate superconductors |
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