Substitution effects on the electronic anomaly and superconductivity in La2-xBaxCuO4 and La2-xSrxCuO4 with x ∼ 1/8

Yoji Koike, Shuichi Takeuchi, Hidetaka Sato, Yuichiro Hama, Masatsune Kato, Yasuhiro Ono, Susumu Katano

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23 Citations (Scopus)

Abstract

The effects of substitution of Y or Bi on the low-temperature structural phase transition, electronic anomaly and superconductivity have been studied in La2-y-xYyBaxCuO4, La2-y-xBiyBaxCuO4 and La1.9-y-xTb0.1BiySrxCuO4 with x = 1/8. Moreover, an electronic anomaly, which is analogous to those observed in La2-xBaxCuO4 and La1.6-xNd0.4SrxCuO4 with x ∼ 1/8, has been found below about 60 K in the thermoelectric power measurements for the Zn-substituted La2-xSrxCu1-yZnyO4 with x ∼ 0.115 and y = 0.01 - 0.02. These experimental results support the conclusions by Tranquada et al. that static order of the stripe correlations of holes and spins, owing to pinning by the low-temperature structure or impurities (Zn in this case), is the origin of the electronic anomaly, leading to the suppression of superconductivity.

Original languageEnglish
Pages (from-to)317-322
Number of pages6
JournalJournal of Low Temperature Physics
Volume105
Issue number3-4
DOIs
Publication statusPublished - 1996 Jan 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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