Pressure-induced dimensional crossover and superconductivity in the hole-doped two-leg ladder compound Sr14-xCaxCu24O41

T. Nagata, M. Uehara, J. Goto, J. Akimitsu, N. Motoyama, H. Eisaki, S. Uchida, H. Takahashi, T. Nakanishi, N. Môri

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Abstract

Anisotropic electrical resistivity under high pressure was measured for a single crystal of Sr2.5Ca11.5-Cu24O41, a hole-doped two-leg ladder compound. Superconductivity was observed between 3.5 and 8 GPa, accompanied by metallic resistivity between the ladders, which indicates semiconducting behavior at ambient pressure. This in turn strongly suggests that the application of pressure brings about a dimensional crossover from one to two, and that superconductivity in this system is a consequence of an insulator to superconductor transition in the anisotropic two-dimensional system.

Original languageEnglish
Pages (from-to)1090-1093
Number of pages4
JournalPhysical Review Letters
Volume81
Issue number5
DOIs
Publication statusPublished - Jan 1 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Nagata, T., Uehara, M., Goto, J., Akimitsu, J., Motoyama, N., Eisaki, H., Uchida, S., Takahashi, H., Nakanishi, T., & Môri, N. (1998). Pressure-induced dimensional crossover and superconductivity in the hole-doped two-leg ladder compound Sr14-xCaxCu24O41. Physical Review Letters, 81(5), 1090-1093. https://doi.org/10.1103/PhysRevLett.81.1090