Anisotropic spin excitations in spin-Peierls CuGeO3

Kazuhiko Ikeuchi; Ryoichi Kajimoto; Fumio Mizuno; Masaki Fujita; Yasuhiro Inamura; Mitsutaka Nakamura; Kenji Nakajima; Kazuya Aizawa; Masatoshi Arai

doi:10.3938/jkps.63.333

Anisotropic spin excitations in spin-Peierls CuGeO₃

Kazuhiko Ikeuchi, Ryoichi Kajimoto, Fumio Mizuno, Masaki Fujita, Yasuhiro Inamura, Mitsutaka Nakamura, Kenji Nakajima, Kazuya Aizawa, Masatoshi Arai

Materials Property Division

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

2 Citations (Scopus)

Abstract

We report on the investigation of spin excitations in CuGeO₃ at a low temperature by using inelastic neutron scattering on a pulsed source with a time-of-flight analysis. By observing the dispersion relation of spin excitations not only along the chain direction but also along the inter chain direction, we studied spin correlations in the S = 1/2 Heisenberg chains, as well as between the chains, in detail. The results show a clear anisotropy of the magnetic excitations at a temperature below the spin-Peierls transition temperature.

Original language	English
Pages (from-to)	333-336
Number of pages	4
Journal	Journal of the Korean Physical Society
Volume	63
Issue number	3
DOIs	https://doi.org/10.3938/jkps.63.333
Publication status	Published - 2013 Aug 1

Keywords

CuGeO
Inelastic neutron scattering experiment
Inter-chain interaction
One-dimensional quantum spin system

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.3938/jkps.63.333

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title = "Anisotropic spin excitations in spin-Peierls CuGeO3",

abstract = "We report on the investigation of spin excitations in CuGeO3 at a low temperature by using inelastic neutron scattering on a pulsed source with a time-of-flight analysis. By observing the dispersion relation of spin excitations not only along the chain direction but also along the inter chain direction, we studied spin correlations in the S = 1/2 Heisenberg chains, as well as between the chains, in detail. The results show a clear anisotropy of the magnetic excitations at a temperature below the spin-Peierls transition temperature.",

keywords = "CuGeO, Inelastic neutron scattering experiment, Inter-chain interaction, One-dimensional quantum spin system",

author = "Kazuhiko Ikeuchi and Ryoichi Kajimoto and Fumio Mizuno and Masaki Fujita and Yasuhiro Inamura and Mitsutaka Nakamura and Kenji Nakajima and Kazuya Aizawa and Masatoshi Arai",

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T1 - Anisotropic spin excitations in spin-Peierls CuGeO3

AU - Ikeuchi, Kazuhiko

AU - Kajimoto, Ryoichi

AU - Mizuno, Fumio

AU - Fujita, Masaki

AU - Inamura, Yasuhiro

AU - Nakamura, Mitsutaka

AU - Nakajima, Kenji

AU - Aizawa, Kazuya

AU - Arai, Masatoshi

PY - 2013/8/1

Y1 - 2013/8/1

N2 - We report on the investigation of spin excitations in CuGeO3 at a low temperature by using inelastic neutron scattering on a pulsed source with a time-of-flight analysis. By observing the dispersion relation of spin excitations not only along the chain direction but also along the inter chain direction, we studied spin correlations in the S = 1/2 Heisenberg chains, as well as between the chains, in detail. The results show a clear anisotropy of the magnetic excitations at a temperature below the spin-Peierls transition temperature.

AB - We report on the investigation of spin excitations in CuGeO3 at a low temperature by using inelastic neutron scattering on a pulsed source with a time-of-flight analysis. By observing the dispersion relation of spin excitations not only along the chain direction but also along the inter chain direction, we studied spin correlations in the S = 1/2 Heisenberg chains, as well as between the chains, in detail. The results show a clear anisotropy of the magnetic excitations at a temperature below the spin-Peierls transition temperature.

KW - CuGeO

KW - Inelastic neutron scattering experiment

KW - Inter-chain interaction

KW - One-dimensional quantum spin system

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