Magnetic excitations of dimerized CuGeO3: Continuum scattering and interchain modulation

D. Welz; M. Nishi; M. Fujita; K. Kakurai; M. Arai; J. Akimitsu; Y. Fujii

doi:10.1016/S0921-4526(97)00856-9

Magnetic excitations of dimerized CuGeO₃: Continuum scattering and interchain modulation

D. Welz, M. Nishi, M. Fujita, K. Kakurai, M. Arai, J. Akimitsu, Y. Fujii

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

Triple-axis spectrometry on dimerized Heisenberg antiferromagnetic chains in CuGeO₃ shows continuum scattering above a resolution limited mode. The continuum intensity at 10 meV corresponds to a dimerization gap of ≈ 3.5 meV for a one-dimensional fermion model of the Cu spins. The mode intensity in the b* interchain direction varies more strongly than predicted by simple theories in three dimensions.

Original language	English
Pages (from-to)	540-542
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	241-243
DOIs	https://doi.org/10.1016/S0921-4526(97)00856-9
Publication status	Published - Jan 1 1997
Externally published	Yes

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Keywords

Chain antiferromagnets
Inelastic neutron scattering
Spin dynamics
Spin-Peierls state

ASJC Scopus subject areas

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

Cite this

Welz, D., Nishi, M., Fujita, M., Kakurai, K., Arai, M., Akimitsu, J., & Fujii, Y. (1997). Magnetic excitations of dimerized CuGeO₃: Continuum scattering and interchain modulation. Physica B: Condensed Matter, 241-243, 540-542. https://doi.org/10.1016/S0921-4526(97)00856-9

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abstract = "Triple-axis spectrometry on dimerized Heisenberg antiferromagnetic chains in CuGeO3 shows continuum scattering above a resolution limited mode. The continuum intensity at 10 meV corresponds to a dimerization gap of ≈ 3.5 meV for a one-dimensional fermion model of the Cu spins. The mode intensity in the b* interchain direction varies more strongly than predicted by simple theories in three dimensions.",

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T2 - Continuum scattering and interchain modulation

AU - Welz, D.

AU - Nishi, M.

AU - Fujita, M.

AU - Kakurai, K.

AU - Arai, M.

AU - Akimitsu, J.

AU - Fujii, Y.

PY - 1997/1/1

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N2 - Triple-axis spectrometry on dimerized Heisenberg antiferromagnetic chains in CuGeO3 shows continuum scattering above a resolution limited mode. The continuum intensity at 10 meV corresponds to a dimerization gap of ≈ 3.5 meV for a one-dimensional fermion model of the Cu spins. The mode intensity in the b* interchain direction varies more strongly than predicted by simple theories in three dimensions.

AB - Triple-axis spectrometry on dimerized Heisenberg antiferromagnetic chains in CuGeO3 shows continuum scattering above a resolution limited mode. The continuum intensity at 10 meV corresponds to a dimerization gap of ≈ 3.5 meV for a one-dimensional fermion model of the Cu spins. The mode intensity in the b* interchain direction varies more strongly than predicted by simple theories in three dimensions.

KW - Chain antiferromagnets

KW - Inelastic neutron scattering

KW - Spin dynamics

KW - Spin-Peierls state

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10.1016/S0921-4526(97)00856-9