Multiparticle states in the S = 1 chain system CsNiCl3

M. Kenzelmann; R. A. Cowley; W. J.L. Buyers; R. Coldea; J. S. Gardner; M. Enderle; D. F. McMorrow; S. M. Bennington

doi:10.1103/PhysRevLett.87.017201

Multiparticle states in the S = 1 chain system CsNiCl₃

M. Kenzelmann, R. A. Cowley, W. J.L. Buyers, R. Coldea, J. S. Gardner, M. Enderle, D. F. McMorrow, S. M. Bennington

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Abstract

A continuum of magnetic states has been observed by neutron scattering from the spin-1 chain compound CsNiCl₃ in its disordered gapped one-dimensional phase. Results using both triple-axis and time-of-flight spectrometers show that around the antiferromagnetic point Q_c = π, the continuum lies higher in energy than the Haldane gapped excitations. At 6K the integrated intensity of the continuum is about 12(2)% of the total spectral weight. This result is considerably larger than the 1%–3% weight predicted by the nonlinear sigma model for the three-particle continuum.

Original language	English
Journal	Physical Review Letters
Volume	87
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.87.017201
State	Published - 2001
Externally published	Yes

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title = "Multiparticle states in the S = 1 chain system CsNiCl3",

abstract = "A continuum of magnetic states has been observed by neutron scattering from the spin-1 chain compound CsNiCl3 in its disordered gapped one-dimensional phase. Results using both triple-axis and time-of-flight spectrometers show that around the antiferromagnetic point Qc = π, the continuum lies higher in energy than the Haldane gapped excitations. At 6K the integrated intensity of the continuum is about 12(2)\% of the total spectral weight. This result is considerably larger than the 1\%–3\% weight predicted by the nonlinear sigma model for the three-particle continuum.",

author = "M. Kenzelmann and Cowley, \{R. A.\} and Buyers, \{W. J.L.\} and R. Coldea and Gardner, \{J. S.\} and M. Enderle and McMorrow, \{D. F.\} and Bennington, \{S. M.\}",

year = "2001",

doi = "10.1103/PhysRevLett.87.017201",

language = "English",

volume = "87",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - Multiparticle states in the S = 1 chain system CsNiCl3

AU - Kenzelmann, M.

AU - Cowley, R. A.

AU - Buyers, W. J.L.

AU - Coldea, R.

AU - Gardner, J. S.

AU - Enderle, M.

AU - McMorrow, D. F.

AU - Bennington, S. M.

PY - 2001

Y1 - 2001

N2 - A continuum of magnetic states has been observed by neutron scattering from the spin-1 chain compound CsNiCl3 in its disordered gapped one-dimensional phase. Results using both triple-axis and time-of-flight spectrometers show that around the antiferromagnetic point Qc = π, the continuum lies higher in energy than the Haldane gapped excitations. At 6K the integrated intensity of the continuum is about 12(2)% of the total spectral weight. This result is considerably larger than the 1%–3% weight predicted by the nonlinear sigma model for the three-particle continuum.

AB - A continuum of magnetic states has been observed by neutron scattering from the spin-1 chain compound CsNiCl3 in its disordered gapped one-dimensional phase. Results using both triple-axis and time-of-flight spectrometers show that around the antiferromagnetic point Qc = π, the continuum lies higher in energy than the Haldane gapped excitations. At 6K the integrated intensity of the continuum is about 12(2)% of the total spectral weight. This result is considerably larger than the 1%–3% weight predicted by the nonlinear sigma model for the three-particle continuum.

UR - https://www.scopus.com/pages/publications/85035289002

U2 - 10.1103/PhysRevLett.87.017201

DO - 10.1103/PhysRevLett.87.017201

M3 - Article

AN - SCOPUS:85035289002

SN - 0031-9007

VL - 87

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

ER -

Multiparticle states in the S = 1 chain system CsNiCl₃

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