Chemical potential shift, density of states and Fermi surfaces in overdoped and underdoped La2-xSrxCuO4

A. Fujimori*, A. Ino, T. Mizokawa, C. Kim, Z. X. Shen, T. Sasagawa, T. Kimura, K. Kishio, M. Takaba, K. Tamasaku, H. Eisaki, S. Uchidau

*この研究の対応する著者

研究成果: Article査読

19 被引用数 (Scopus)

抄録

We have made photoemission studies of La2-xSrxCuO4 (LSCO) and found the following: (1) suppression of the chemical potential (μ) shift for small x indicates a breakdown of the Fermi-liquid picture in the underdoped regime and suggests the opening of a pseudogap; (2) valence band spectra have indeed shown a pseudogap whose magnitude increases with decreasing x, simultaneously the density of states (DOS) at μ diminishes; (3) ARPES measurements have revealed changes from an electron-like Fermi surface in the overdoped regime to a hole-like one in the underdoped regime.

本文言語English
ページ(範囲)1892-1896
ページ数5
ジャーナルJournal of Physics and Chemistry of Solids
59
10-12
DOI
出版ステータスPublished - 1998
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

フィンガープリント

「Chemical potential shift, density of states and Fermi surfaces in overdoped and underdoped La<sub>2-x</sub>Sr<sub>x</sub>CuO<sub>4</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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