Transport properties of the single-crystal La2-xBaxCuO4 (0 ≤ x ≤ 0.11)

T. Adachi, T. Noji, Y. Koike

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

We report on the temperature dependence of the in-plane electrical resistivity ρab and the in-plane Hall coefficient RH in various magnetic fields of the single-crystal La2-xBaxCuO4 with x = 0.083 and 0.11. In x = 0.11, which is close to x = 1/8, where the superconductivity is strongly suppressed, a clear jump in ρab and a drop in RH have been observed at Td2 ∼ 53 K, where the structural phase transition between the orthorhombic mid-temperature and tetragonal low-temperature phases occurs. Moreover, a sign reversal of RH has been observed below ∼ 25 K and the magnitude of the sign reversal increases with increasing magnetic field. In x = 0.083, on the other hand, there is neither jump in ρab nor drop in RH at Td2, and also no sign reversal in RH at low temperatures even in magnetic fields up to 9 T. In conclusion, there is no doubt that a static stripe order of holes and spins, observed in La1.6-xNd0.4SrxCuO4 with x ∼ 1/8, is formed below Td2 also in La2-xBaxCuO4 with x ∼ 1/8. The RH in the stripe-ordered state has a negative value, which is consistent with the recent theory by Prelovšek et al.

Original languageEnglish
Pages (from-to)1097-1101
Number of pages5
JournalJournal of Physics and Chemistry of Solids
Volume63
Issue number6-8
DOIs
Publication statusPublished - 2002 Jun
EventProceedings of the 8th ISSP International Symposium - Tokyo, Japan
Duration: 2001 Nov 22001 Nov 5

Keywords

  • A. Oxides
  • A. Superconductors
  • D. Superconductivity
  • D. Transport properties

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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