The magnetic ordering in the spin ladder compound Sr2.5Ca11.5Cu24O41

J. Akimitsu, K. Ohishi, T. Yokoo, K. Kakuta, H. Fujino, T. Nagata, R. Kadono, M. Nishi, K. Kakurai, S. Katano

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


μSR and neutron experiments on Sr2.5Ca11.5Cu24O41 single crystal have been performed. The time-dependenet muon polarization shows a significant change at around TN ≃ 2.1 K indicating the onset of magnetic long-range order. Considering both the μSR and neutron scattering data, a possible magnetic structure on the chain and ladder sites has been proposed. However, the lack of coherent μSR precession signal strongly suggests that the distribution of the internal field is not homogeneous. This can be interpreted in line with the scenario that the singlet state and antiferromagnetic order coexist at ambient pressure and these localized hole pairs begin to move under pressure, resulting in the occurrence of superconductivity.

Original languageEnglish
Pages (from-to)157-160
Number of pages4
JournalPhysica B: Condensed Matter
Publication statusPublished - 2000
Externally publishedYes
Event8th International Conference on Muon Spin Rotation, Relaxation and Resonance (muSR'99) - Les Diablerets, Switzerland
Duration: Aug 30 1999Sept 3 1999


  • Spin ladder
  • SrCaCuO
  • μSR

ASJC Scopus subject areas

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


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