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 › peer-review

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 - 1997
Externally published	Yes

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

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@article{303a1e0d71e04791ac184d7ff0e82b19,

title = "Magnetic excitations of dimerized CuGeO3: Continuum scattering and interchain modulation",

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.",

keywords = "Chain antiferromagnets, Inelastic neutron scattering, Spin dynamics, Spin-Peierls state",

author = "D. Welz and M. Nishi and M. Fujita and K. Kakurai and M. Arai and J. Akimitsu and Y. Fujii",

note = "Funding Information: D.W. acknowledges travel support by Deutsche Forschungsgemeinschaft (DFG).",

year = "1997",

doi = "10.1016/S0921-4526(97)00856-9",

language = "English",

volume = "241-243",

pages = "540--542",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

}

TY - JOUR

T1 - Magnetic excitations of dimerized CuGeO3

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.

N1 - Funding Information: D.W. acknowledges travel support by Deutsche Forschungsgemeinschaft (DFG).

PY - 1997

Y1 - 1997

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

UR - http://www.scopus.com/inward/record.url?scp=11544300442&partnerID=8YFLogxK

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U2 - 10.1016/S0921-4526(97)00856-9

DO - 10.1016/S0921-4526(97)00856-9

M3 - Article

AN - SCOPUS:11544300442

VL - 241-243

SP - 540

EP - 542

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

ER -