Ultraviolet Photoemission Study of High-Tc Superconductor (La1-xSrx)2CuO4-δ

Takashi Takahashi, Fumihiko Maeda, Shoichi Hosoya, Masatoshi Sato

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35 Citations (Scopus)


Ultraviolet photoemission spectra of high-Tc superconductor (La1-xSrx)2CuO4-δ, (x=0.075 and δ≦0.04) are presented. The experimental result was compared with the band calculations of La2CuO4 by Mattheiss and Takegahara et al. It was found that as regards the valence-band width (about 7 eV) the experiment and the calculations are in good agreement with each other, but the position of the calculated valence bands contributed mainly by weakly bonding Cu(3d)-O(2p) states are shiftd toward the lower binding energy by about 1 eV with respect to the experiment. The possible origins for this discrepancy were discussed.

Original languageEnglish
Pages (from-to)L349-L351
JournalJapanese journal of applied physics
Issue number4 A
Publication statusPublished - 1987 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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