Coexistence of the spin liquid state and the magnetic ordering in the spin ladder compound; Sr14-xCaxCu24O41

T. Nagata; H. Fujino; K. Ohishi; J. Akimitsu; S. Katano; M. Nishi; K. Kakurai

doi:10.1016/S0022-3697(99)00044-X

Coexistence of the spin liquid state and the magnetic ordering in the spin ladder compound; Sr_14-xCa_xCu₂₄O₄₁

T. Nagata, H. Fujino, K. Ohishi, J. Akimitsu, S. Katano, M. Nishi, K. Kakurai

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

The magnetic ground state in the hole-doped two-leg ladder system Sr_2.5Ca_11.5Cu₂₄O₄₁ both at ambient pressure and under high pressure up to 3 GPa was investigated by a neutron scattering experiment. The spin gap value for this system at ambient pressure is found to be 32.1 ± 0.3 meV, being almost the same as that of the parent material Sr₁₄Cu₂₄O₄₁. With increasing pressure, the spin gap energy is almost unchanged, however, the inelastic neutron scattering intensity at the zone center of the ladder is decreased progressively. We also observed antiferromagnetic long range ordering below T_N(approx. 2.1 K), which was increased with increasing pressure. A possible magnetic structure of this system is also discussed. These results show the coexistence of the spin liquid state and antiferromagnetic ordering in the hole-doped two-leg ladder system.

Original language	English
Pages (from-to)	1039-1043
Number of pages	5
Journal	Journal of Physics and Chemistry of Solids
Volume	60
Issue number	8
DOIs	https://doi.org/10.1016/S0022-3697(99)00044-X
Publication status	Published - Jan 1 1999
Externally published	Yes
Event	Proceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7) - Tokyo, Jpn Duration: Nov 24 1998 → Nov 27 1998

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Coexistence of the spin liquid state and the magnetic ordering in the spin ladder compound; Sr14-xCaxCu24O41",

abstract = "The magnetic ground state in the hole-doped two-leg ladder system Sr2.5Ca11.5Cu24O41 both at ambient pressure and under high pressure up to 3 GPa was investigated by a neutron scattering experiment. The spin gap value for this system at ambient pressure is found to be 32.1 ± 0.3 meV, being almost the same as that of the parent material Sr14Cu24O41. With increasing pressure, the spin gap energy is almost unchanged, however, the inelastic neutron scattering intensity at the zone center of the ladder is decreased progressively. We also observed antiferromagnetic long range ordering below TN(approx. 2.1 K), which was increased with increasing pressure. A possible magnetic structure of this system is also discussed. These results show the coexistence of the spin liquid state and antiferromagnetic ordering in the hole-doped two-leg ladder system.",

author = "T. Nagata and H. Fujino and K. Ohishi and J. Akimitsu and S. Katano and M. Nishi and K. Kakurai",

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T1 - Coexistence of the spin liquid state and the magnetic ordering in the spin ladder compound; Sr14-xCaxCu24O41

AU - Nagata, T.

AU - Fujino, H.

AU - Ohishi, K.

AU - Akimitsu, J.

AU - Katano, S.

AU - Nishi, M.

AU - Kakurai, K.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - The magnetic ground state in the hole-doped two-leg ladder system Sr2.5Ca11.5Cu24O41 both at ambient pressure and under high pressure up to 3 GPa was investigated by a neutron scattering experiment. The spin gap value for this system at ambient pressure is found to be 32.1 ± 0.3 meV, being almost the same as that of the parent material Sr14Cu24O41. With increasing pressure, the spin gap energy is almost unchanged, however, the inelastic neutron scattering intensity at the zone center of the ladder is decreased progressively. We also observed antiferromagnetic long range ordering below TN(approx. 2.1 K), which was increased with increasing pressure. A possible magnetic structure of this system is also discussed. These results show the coexistence of the spin liquid state and antiferromagnetic ordering in the hole-doped two-leg ladder system.

AB - The magnetic ground state in the hole-doped two-leg ladder system Sr2.5Ca11.5Cu24O41 both at ambient pressure and under high pressure up to 3 GPa was investigated by a neutron scattering experiment. The spin gap value for this system at ambient pressure is found to be 32.1 ± 0.3 meV, being almost the same as that of the parent material Sr14Cu24O41. With increasing pressure, the spin gap energy is almost unchanged, however, the inelastic neutron scattering intensity at the zone center of the ladder is decreased progressively. We also observed antiferromagnetic long range ordering below TN(approx. 2.1 K), which was increased with increasing pressure. A possible magnetic structure of this system is also discussed. These results show the coexistence of the spin liquid state and antiferromagnetic ordering in the hole-doped two-leg ladder system.

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SP - 1039

EP - 1043

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

SN - 0022-3697

IS - 8

T2 - Proceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7)

Y2 - 24 November 1998 through 27 November 1998

ER -

Coexistence of the spin liquid state and the magnetic ordering in the spin ladder compound; Sr_14-xCa_xCu₂₄O₄₁

Abstract

ASJC Scopus subject areas

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