Role of single-ion excitations in the mixed-spin quasi-one-dimensional quantum antiferromagnet

A. Zheludev; S. Maslov; T. Yokoo; J. Akimitsu

doi:10.1103/PhysRevB.61.11601

Role of single-ion excitations in the mixed-spin quasi-one-dimensional quantum antiferromagnet

A. Zheludev, S. Maslov, T. Yokoo, J. Akimitsu

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

19 Citations (Scopus)

Abstract

Inelastic neutron scattering experiments on (Formula presented) single crystals and powder samples are used to study the dynamic coupling of one-dimensional Haldane-gap excitations in the (Formula presented)-chains to local crystal-field transitions, associated with the rare earth ions. Substantial interference between the two types of excitations is observed even in the one-dimensional paramagnetic phase. Despite that, the results provide solid justification for the previously proposed “static staggered field” model for (Formula presented) nickelates. The observed behavior is qualitatively explained by a simple chain-random-phase-approximation model.

Original language	English
Pages (from-to)	11601-11612
Number of pages	12
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	61
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.61.11601
Publication status	Published - Jan 1 2000
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.61.11601

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abstract = "Inelastic neutron scattering experiments on (Formula presented) single crystals and powder samples are used to study the dynamic coupling of one-dimensional Haldane-gap excitations in the (Formula presented)-chains to local crystal-field transitions, associated with the rare earth ions. Substantial interference between the two types of excitations is observed even in the one-dimensional paramagnetic phase. Despite that, the results provide solid justification for the previously proposed “static staggered field” model for (Formula presented) nickelates. The observed behavior is qualitatively explained by a simple chain-random-phase-approximation model.",

author = "A. Zheludev and S. Maslov and T. Yokoo and J. Akimitsu",

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AU - Zheludev, A.

AU - Maslov, S.

AU - Yokoo, T.

AU - Akimitsu, J.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - Inelastic neutron scattering experiments on (Formula presented) single crystals and powder samples are used to study the dynamic coupling of one-dimensional Haldane-gap excitations in the (Formula presented)-chains to local crystal-field transitions, associated with the rare earth ions. Substantial interference between the two types of excitations is observed even in the one-dimensional paramagnetic phase. Despite that, the results provide solid justification for the previously proposed “static staggered field” model for (Formula presented) nickelates. The observed behavior is qualitatively explained by a simple chain-random-phase-approximation model.

AB - Inelastic neutron scattering experiments on (Formula presented) single crystals and powder samples are used to study the dynamic coupling of one-dimensional Haldane-gap excitations in the (Formula presented)-chains to local crystal-field transitions, associated with the rare earth ions. Substantial interference between the two types of excitations is observed even in the one-dimensional paramagnetic phase. Despite that, the results provide solid justification for the previously proposed “static staggered field” model for (Formula presented) nickelates. The observed behavior is qualitatively explained by a simple chain-random-phase-approximation model.

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Role of single-ion excitations in the mixed-spin quasi-one-dimensional quantum antiferromagnet

Abstract

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