Low spin to high spin transition at the onset of superconductivity in LaSrCuO and high spin state in NdCeCuO compound

Mikio Eto, Hiroshi Kamimura

研究成果: Article

2 引用 (Scopus)

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Electronic structures of LaSrCuO and NdCeCuO compounds are investigated by first principles cluster calculations. In the hole-doped CuO6 cluster embedded in LaSrCuO, the ground state changes from low spin to high spin state near the doping concentration of the onset of superconductivity, owing to the effect of the apical oxygens. If we take account of the effect of the dopant divalent ions by virtual crystal approximation, the high spin state becomes more stable. While in the electron-doped CuO4 cluster in NdCeCuO, the high spin ground state always appears. Using these results, the observed phase diagrams for hole and electron-doped superconductors are explained.

元の言語English
ページ(範囲)1599-1600
ページ数2
ジャーナルPhysica C: Superconductivity and its applications
185-189
発行部数PART 3
DOI
出版物ステータスPublished - 1991 12 1
外部発表Yes

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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