Dynamics of composite haldane spin chains in IPA-CuCl3

T. Masuda; A. Zheludev; H. Manaka; L. P. Regnault; J. H. Chung; Y. Qiu

doi:10.1103/PhysRevLett.96.047210

Dynamics of composite haldane spin chains in IPA-CuCl3

T. Masuda, A. Zheludev, H. Manaka, L. P. Regnault, J. H. Chung, Y. Qiu

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

109 Citations (Scopus)

Abstract

Magnetic excitations in the quasi-one-dimensional antiferromagnet IPA-CuCl3 are studied by cold neutron inelastic scattering. Strongly dispersive gap excitations are observed. Contrary to previously proposed models, the system is best described as an asymmetric quantum spin ladder. The observed spectrum is interpreted in terms of composite Haldane spin chains. The key difference from actual S=1 chains is a sharp cutoff of the single-magnon spectrum at a certain critical wave vector.

Original language	English
Article number	047210
Journal	Physical review letters
Volume	96
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.96.047210
Publication status	Published - 2006
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.96.047210

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title = "Dynamics of composite haldane spin chains in IPA-CuCl3",

abstract = "Magnetic excitations in the quasi-one-dimensional antiferromagnet IPA-CuCl3 are studied by cold neutron inelastic scattering. Strongly dispersive gap excitations are observed. Contrary to previously proposed models, the system is best described as an asymmetric quantum spin ladder. The observed spectrum is interpreted in terms of composite Haldane spin chains. The key difference from actual S=1 chains is a sharp cutoff of the single-magnon spectrum at a certain critical wave vector.",

author = "T. Masuda and A. Zheludev and H. Manaka and Regnault, {L. P.} and Chung, {J. H.} and Y. Qiu",

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AU - Masuda, T.

AU - Zheludev, A.

AU - Manaka, H.

AU - Regnault, L. P.

AU - Chung, J. H.

AU - Qiu, Y.

PY - 2006

Y1 - 2006

N2 - Magnetic excitations in the quasi-one-dimensional antiferromagnet IPA-CuCl3 are studied by cold neutron inelastic scattering. Strongly dispersive gap excitations are observed. Contrary to previously proposed models, the system is best described as an asymmetric quantum spin ladder. The observed spectrum is interpreted in terms of composite Haldane spin chains. The key difference from actual S=1 chains is a sharp cutoff of the single-magnon spectrum at a certain critical wave vector.

AB - Magnetic excitations in the quasi-one-dimensional antiferromagnet IPA-CuCl3 are studied by cold neutron inelastic scattering. Strongly dispersive gap excitations are observed. Contrary to previously proposed models, the system is best described as an asymmetric quantum spin ladder. The observed spectrum is interpreted in terms of composite Haldane spin chains. The key difference from actual S=1 chains is a sharp cutoff of the single-magnon spectrum at a certain critical wave vector.

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U2 - 10.1103/PhysRevLett.96.047210

DO - 10.1103/PhysRevLett.96.047210

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JO - Physical Review Letters

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Dynamics of composite haldane spin chains in IPA-CuCl3

Abstract

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