Pressure effects on spin-gap and antiferromagnetism in the hole-doped spin ladder system Sr2.5Ca11.5Cu24O41

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

doi:10.1016/S0921-4526(98)00692-9

Pressure effects on spin-gap and antiferromagnetism in the hole-doped spin ladder system Sr_2.5Ca_11.5Cu₂₄O₄₁

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

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

8 Citations (Scopus)

Abstract

The spin singlet state and the hole-induced antiferromagnetism of the spin ladder system Sr_2.5Ca_11.5Cu₂₄O₄₁, which shows superconductivity under high pressure, have been studied by neutron scattering under the pressures up to 3.0 GPa. The results for the spin gap excitations indicate that the intensity decreases progressively with increasing pressure; however, they suggest that the spin gap energy is almost the same as that at ambient pressure, ∼32 meV. The intensity for the antiferromagnetic order, and the magnetic moment, decreases with increasing pressure, and seems to disappear at the critical pressure for the superconductivity. On the other hand, the Néel temperature T_N (about 2 K at ambient pressure) increases slightly.

Original language	English
Pages (from-to)	1046-1047
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	259-261
DOIs	https://doi.org/10.1016/S0921-4526(98)00692-9
Publication status	Published - 1999
Externally published	Yes

Keywords

Antiferromagnetism
High pressure
Neutron scattering
Spin gap
Spin ladder
SrCaCuO

ASJC Scopus subject areas

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

Access to Document

10.1016/S0921-4526(98)00692-9

Cite this

@article{1042f66ddf004033886a265ec4b48c83,

title = "Pressure effects on spin-gap and antiferromagnetism in the hole-doped spin ladder system Sr2.5Ca11.5Cu24O41",

abstract = "The spin singlet state and the hole-induced antiferromagnetism of the spin ladder system Sr2.5Ca11.5Cu24O41, which shows superconductivity under high pressure, have been studied by neutron scattering under the pressures up to 3.0 GPa. The results for the spin gap excitations indicate that the intensity decreases progressively with increasing pressure; however, they suggest that the spin gap energy is almost the same as that at ambient pressure, ∼32 meV. The intensity for the antiferromagnetic order, and the magnetic moment, decreases with increasing pressure, and seems to disappear at the critical pressure for the superconductivity. On the other hand, the N{\'e}el temperature TN (about 2 K at ambient pressure) increases slightly.",

keywords = "Antiferromagnetism, High pressure, Neutron scattering, Spin gap, Spin ladder, SrCaCuO",

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

note = "Funding Information: This work was partly supported by a Grant-in-Aid for Science Research from the Ministry of Education, Science, Sports and Culture of Japan and also by a grant from CREST of Japan Science and Technology Corporation.",

year = "1999",

doi = "10.1016/S0921-4526(98)00692-9",

language = "English",

volume = "259-261",

pages = "1046--1047",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

}

TY - JOUR

T1 - Pressure effects on spin-gap and antiferromagnetism in the hole-doped spin ladder system Sr2.5Ca11.5Cu24O41

AU - Katano, S.

AU - Nagata, T.

AU - Fujino, H.

AU - Akimitsu, J.

AU - Nishi, M.

AU - Kakurai, K.

N1 - Funding Information: This work was partly supported by a Grant-in-Aid for Science Research from the Ministry of Education, Science, Sports and Culture of Japan and also by a grant from CREST of Japan Science and Technology Corporation.

PY - 1999

Y1 - 1999

N2 - The spin singlet state and the hole-induced antiferromagnetism of the spin ladder system Sr2.5Ca11.5Cu24O41, which shows superconductivity under high pressure, have been studied by neutron scattering under the pressures up to 3.0 GPa. The results for the spin gap excitations indicate that the intensity decreases progressively with increasing pressure; however, they suggest that the spin gap energy is almost the same as that at ambient pressure, ∼32 meV. The intensity for the antiferromagnetic order, and the magnetic moment, decreases with increasing pressure, and seems to disappear at the critical pressure for the superconductivity. On the other hand, the Néel temperature TN (about 2 K at ambient pressure) increases slightly.

AB - The spin singlet state and the hole-induced antiferromagnetism of the spin ladder system Sr2.5Ca11.5Cu24O41, which shows superconductivity under high pressure, have been studied by neutron scattering under the pressures up to 3.0 GPa. The results for the spin gap excitations indicate that the intensity decreases progressively with increasing pressure; however, they suggest that the spin gap energy is almost the same as that at ambient pressure, ∼32 meV. The intensity for the antiferromagnetic order, and the magnetic moment, decreases with increasing pressure, and seems to disappear at the critical pressure for the superconductivity. On the other hand, the Néel temperature TN (about 2 K at ambient pressure) increases slightly.

KW - Antiferromagnetism

KW - High pressure

KW - Neutron scattering

KW - Spin gap

KW - Spin ladder

KW - SrCaCuO

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

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