抄録
Using spin-resolved resonant photoemission we have probed the singlet vs. triplet character of the two-hole state in the layered cuprates Bi2Sr2CaCu2O8+δ, La2-xSrxCuO4 and Sr2CuO2Cl2. The combination of the photon circular polarization with the photoelectron spin detection gives access to the character of the photoemission final states, which correspond to the two-hole configurations localized at a (CuO4) site. In particular, the lowest energy state is found to have a very high singlet character in all the measured compounds. This can be considered as a strong indication of the existence and stability of the so-called Zhang-Rice singlets in the layered cuprates.
本文言語 | English |
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ページ(範囲) | 34-35 |
ページ数 | 2 |
ジャーナル | Physica B: Condensed Matter |
巻 | 312-313 |
DOI | |
出版ステータス | Published - 2002 3月 |
外部発表 | はい |
イベント | International Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States 継続期間: 2002 8月 6 → 2002 8月 6 |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- 凝縮系物理学
- 電子工学および電気工学