Phonon anomaly in the inorganic spin-Peierls compound CuGeO3

M. Nishi; Y. Fujii; H. Kadowaki; S. Katano; K. Kakurai; J. Akimitsu

doi:10.1016/S0921-4526(02)01869-0

Phonon anomaly in the inorganic spin-Peierls compound CuGeO₃

M. Nishi, Y. Fujii, H. Kadowaki, S. Katano, K. Kakurai, J. Akimitsu

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

Abstract

The phonon profiles of CuGeO₃ have been measured at Q = (0, 3, 0) and E∼1 meV at several temperatures by inelastic neutron scattering experiments. The temperature dependence of the central energy and the full-width at half-maximum changes little, but the integral intensity decreases exponentially below 150 K. This anomalous phenomenon is related to the spin-Peierls transition regarded not as displacive type but as order-disorder type of oxygen atoms. æ 2003 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	872-873
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	329-333
Issue number	II
DOIs	https://doi.org/10.1016/S0921-4526(02)01869-0
Publication status	Published - May 2003
Externally published	Yes

Keywords

Neutron scattering
Phonon
Spin-Peierls

ASJC Scopus subject areas

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

Access to Document

10.1016/S0921-4526(02)01869-0

Cite this

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title = "Phonon anomaly in the inorganic spin-Peierls compound CuGeO3",

abstract = "The phonon profiles of CuGeO3 have been measured at Q = (0, 3, 0) and E∼1 meV at several temperatures by inelastic neutron scattering experiments. The temperature dependence of the central energy and the full-width at half-maximum changes little, but the integral intensity decreases exponentially below 150 K. This anomalous phenomenon is related to the spin-Peierls transition regarded not as displacive type but as order-disorder type of oxygen atoms. {\ae} 2003 Elsevier Science B.V. All rights reserved.",

keywords = "Neutron scattering, Phonon, Spin-Peierls",

author = "M. Nishi and Y. Fujii and H. Kadowaki and S. Katano and K. Kakurai and J. Akimitsu",

year = "2003",

month = may,

doi = "10.1016/S0921-4526(02)01869-0",

language = "English",

volume = "329-333",

pages = "872--873",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

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TY - JOUR

T1 - Phonon anomaly in the inorganic spin-Peierls compound CuGeO3

AU - Nishi, M.

AU - Fujii, Y.

AU - Kadowaki, H.

AU - Katano, S.

AU - Kakurai, K.

AU - Akimitsu, J.

PY - 2003/5

Y1 - 2003/5

N2 - The phonon profiles of CuGeO3 have been measured at Q = (0, 3, 0) and E∼1 meV at several temperatures by inelastic neutron scattering experiments. The temperature dependence of the central energy and the full-width at half-maximum changes little, but the integral intensity decreases exponentially below 150 K. This anomalous phenomenon is related to the spin-Peierls transition regarded not as displacive type but as order-disorder type of oxygen atoms. æ 2003 Elsevier Science B.V. All rights reserved.

AB - The phonon profiles of CuGeO3 have been measured at Q = (0, 3, 0) and E∼1 meV at several temperatures by inelastic neutron scattering experiments. The temperature dependence of the central energy and the full-width at half-maximum changes little, but the integral intensity decreases exponentially below 150 K. This anomalous phenomenon is related to the spin-Peierls transition regarded not as displacive type but as order-disorder type of oxygen atoms. æ 2003 Elsevier Science B.V. All rights reserved.

KW - Neutron scattering

KW - Phonon

KW - Spin-Peierls

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U2 - 10.1016/S0921-4526(02)01869-0

DO - 10.1016/S0921-4526(02)01869-0

M3 - Article

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VL - 329-333

SP - 872

EP - 873

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - II

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