抄録
We have performed an angle-resolved photoemission study of overdoped La1.78Sr0.22CuO4, and have observed sharp nodal quasiparticle peaks in the second Brillouin zone that are comparable to data from Bi2Sr2CaCu2O8+δ. The data analysis using energy distribution curves, momentum distribution curves, and intensity maps all show evidence of an electronlike Fermi surface, which is well explained by band-structure calculations. Evidence for many-body effects are also found in the substantial spectral weight remaining below the Fermi level around (π,0), where the band is predicted to lie above EF.
本文言語 | English |
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論文番号 | 220501 |
ページ(範囲) | 2205011-2205014 |
ページ数 | 4 |
ジャーナル | Physical Review B - Condensed Matter and Materials Physics |
巻 | 63 |
号 | 22 |
出版ステータス | Published - 2001 |
外部発表 | はい |
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