Appearance of magnetic long range order in the spin ladder compound LaCuO2.5

J. Akimitsu, H. Okajima, A. Yamashita, K. Ishii, T. Yokoo, T. Nagata, M. Uehara, R. Kadono, K. Nagamine, N. Kobayashi, Z. Hiroi, M. Takano, H. Takahashi, N. Mori, K. Kinoshita

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Abstract

We report here the two current topics in the ladder compounds. 1. The new ladder compound LaCuO2.5 recently discovered by Hiroi and Takano shows a clear sign of magnetic long range order at around 125 K observed by μ+SR technique. This result demonstrates that the ground state of LaCuO2.5 is not a spin liquid state, but a magnetically ordered state. 2. Superconductivity has been found in the ladder material (Sr, Ca)14Cu24O41 under high pressure between 3 GPa and 4.5 GPa. The superconducting transition temperatures Tc (onset) are 12 K and 9 K at 3 GPa and 4.5 GPa, respectively.

Original languageEnglish
Pages (from-to)43-48
Number of pages6
JournalHyperfine Interactions
Volume104
Issue number1-4
Publication statusPublished - 1997
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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    Akimitsu, J., Okajima, H., Yamashita, A., Ishii, K., Yokoo, T., Nagata, T., Uehara, M., Kadono, R., Nagamine, K., Kobayashi, N., Hiroi, Z., Takano, M., Takahashi, H., Mori, N., & Kinoshita, K. (1997). Appearance of magnetic long range order in the spin ladder compound LaCuO2.5. Hyperfine Interactions, 104(1-4), 43-48.