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

H. Takahashi; N. Môri; T. Nakanishi; T. Nagata; M. Uehara; J. Akimitsu; K. Kinoshita

doi:10.1016/S0921-4526(97)00067-7

Superconductivity in quantum spin-ladder compound Ca_13.6Sr_0.4Cu₂₄O_41+δ at high pressure

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

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Superconductivity has been observed in a spin-ladder compound Ca_13.6Sr_0.4Cu₂₄O_41+δ having Cu₂O₃ ladder layer. Electrical resistivity measurements show that T_C appears at 7 K at 1.5 GPa and disappears above 6 GPa after having the maximum T_C 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 language	English
Pages (from-to)	112-114
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	237-238
DOIs	https://doi.org/10.1016/S0921-4526(97)00067-7
Publication status	Published - Jul 1997
Externally published	Yes

Keywords

Cuprate
High pressure
Ladder compounds
Superconductivity

ASJC Scopus subject areas

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

Access to Document

10.1016/S0921-4526(97)00067-7

Cite this

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

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.",

keywords = "Cuprate, High pressure, Ladder compounds, Superconductivity",

author = "H. Takahashi and N. M{\^o}ri and T. Nakanishi and T. Nagata and M. Uehara and J. Akimitsu and K. Kinoshita",

year = "1997",

month = jul,

doi = "10.1016/S0921-4526(97)00067-7",

language = "English",

volume = "237-238",

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journal = "Physica B: Condensed Matter",

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T1 - Superconductivity in quantum spin-ladder compound Ca13.6Sr0.4Cu24O41+δ at high pressure

AU - Takahashi, H.

AU - Môri, N.

AU - Nakanishi, T.

AU - Nagata, T.

AU - Uehara, M.

AU - Akimitsu, J.

AU - Kinoshita, K.

PY - 1997/7

Y1 - 1997/7

N2 - 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.

AB - 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.

KW - Cuprate

KW - High pressure

KW - Ladder compounds

KW - Superconductivity

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