Superconductivity in quantum spin-ladder compound Ca13.6Sr0.4Cu24O41+δ at high pressure

H. Takahashi, N. Môri, T. Nakanishi, T. Nagata, M. Uehara, Jun Akimitsu, K. Kinoshita

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Superconductivity has been observed in a spin-ladder compound Ca13.6Sr0.4Cu24O41+δ having Cu2O3 ladder layer. Electrical resistivity measurements show that TC appears at 7 K at 1.5 GPa and disappears above 6 GPa after having the maximum TC of 12 K at 3 GPa. The bulk superconductivity was suggested in this system from AC susceptibility measurements, the volume fraction of which was estimated to be about 5% at 4.2 K at 3.5 GPa. In contrast with the oxide superconductor having CuO2-layer, this system shows superconductivity in the very narrow pressure range.

Original languageEnglish
Pages (from-to)112-114
Number of pages3
JournalPhysica B: Condensed Matter
Volume237-238
Publication statusPublished - Jul 1997
Externally publishedYes

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Ladders
Superconductivity
ladders
superconductivity
Oxide superconductors
Volume fraction
alternating current
magnetic permeability
electrical resistivity
oxides

Keywords

  • Cuprate
  • High pressure
  • Ladder compounds
  • Superconductivity

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Takahashi, H., Môri, N., Nakanishi, T., Nagata, T., Uehara, M., Akimitsu, J., & Kinoshita, K. (1997). Superconductivity in quantum spin-ladder compound Ca13.6Sr0.4Cu24O41+δ at high pressure. Physica B: Condensed Matter, 237-238, 112-114.

Superconductivity in quantum spin-ladder compound Ca13.6Sr0.4Cu24O41+δ at high pressure. / Takahashi, H.; Môri, N.; Nakanishi, T.; Nagata, T.; Uehara, M.; Akimitsu, Jun; Kinoshita, K.

In: Physica B: Condensed Matter, Vol. 237-238, 07.1997, p. 112-114.

Research output: Contribution to journalArticle

Takahashi, H, Môri, N, Nakanishi, T, Nagata, T, Uehara, M, Akimitsu, J & Kinoshita, K 1997, 'Superconductivity in quantum spin-ladder compound Ca13.6Sr0.4Cu24O41+δ at high pressure', Physica B: Condensed Matter, vol. 237-238, pp. 112-114.
Takahashi H, Môri N, Nakanishi T, Nagata T, Uehara M, Akimitsu J et al. Superconductivity in quantum spin-ladder compound Ca13.6Sr0.4Cu24O41+δ at high pressure. Physica B: Condensed Matter. 1997 Jul;237-238:112-114.
Takahashi, H. ; Môri, N. ; Nakanishi, T. ; Nagata, T. ; Uehara, M. ; Akimitsu, Jun ; Kinoshita, K. / Superconductivity in quantum spin-ladder compound Ca13.6Sr0.4Cu24O41+δ at high pressure. In: Physica B: Condensed Matter. 1997 ; Vol. 237-238. pp. 112-114.
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