X-Ray Photoemission Spectroscopy of Nd2-xCexCuO4-y and La2-xSrxCuO4
Authors:
- Hiroyoshi IshiiHIHiroyoshi Ishii
- Takehito KoshizawaTKTakehito Koshizawa
- Hiromichi KatauraHKHiromichi Kataura
- Takaaki HanyuTHTakaaki Hanyu
- Hiroyuki TakaiHTHiroyuki Takai
- Kenji MizoguchiKMKenji Mizoguchi
- Kiyoshi KumeKKKiyoshi Kume
- Ikuyo ShiozakiISIkuyo Shiozaki
- Shigeo YamaguchiSYShigeo Yamaguchi
- 1 November 1989
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 28 (11A) , L1952
Abstract
We have measured the Cu 2p and O 1s X-ray photoemission spectra of the high-T c superconductors Nd2-x Ce x CuO4-y and La2-x Sr x CuO4, and the copper oxides CuO and Cu2O. The Cu 2p spectra of superconductors show features similar to those of CuO with divalent Cu ions. For Nd2-x Ce x CuO4-y , the intensity ratio of the satellite to the main peaks decreases with increasing Ce content. The O 1s spectra exhibit a single-peaked structure and are insensitive to whether either electron or hole is doped.Keywords
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