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

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

Cite this

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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",

note = "Funding Information: The authors would like to thank Dr. T. Sugimoto and Dr. T. Tohyama for helpful discussions. The work at Japan Accelerator Research Complex (J-PARC) was carried out under Proposal No. 2009A0093 and Project No. 2009A0087. This work was supported by a Grant-in-Aid for Special Promote Reaseach (No. 17001001) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.",

year = "2013",

month = aug,

doi = "10.3938/jkps.63.333",

language = "English",

volume = "63",

pages = "333--336",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

publisher = "Korean Physical Society",

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TY - JOUR

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

N1 - Funding Information: The authors would like to thank Dr. T. Sugimoto and Dr. T. Tohyama for helpful discussions. The work at Japan Accelerator Research Complex (J-PARC) was carried out under Proposal No. 2009A0093 and Project No. 2009A0087. This work was supported by a Grant-in-Aid for Special Promote Reaseach (No. 17001001) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.

PY - 2013/8

Y1 - 2013/8

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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