Theory of Cu 2p X-ray emission spectroscopy in high-Tc superconductors

Satoshi Tanaka, Kozo Okada, Akio Kotani

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We investigate theoretically Cu 2p-XES for La2CuO4 and CuO on the basis of the formula of the second order optical process with the impurity Anderson model. According to Cu 2p-XES experiments so far made, a shoulder structure appears on the high energy side of the main peak in La2CuO4 and also in high-Tc superconductors, but it is absent in CuO. It is shown that the appearance of the shoulder structure originates from the stronger hybridization for the alg symmetry states in La2CuO4 than in CuO due to the existence of the apical oxygen.

Original languageEnglish
Pages (from-to)1489-1490
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 3
Publication statusPublished - Dec 1 1991
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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