Phonon anomaly in the inorganic spin-Peierls compound CuGeO3

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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)872-873
Number of pages2
JournalPhysica B: Condensed Matter
Volume329-333
Issue numberII
DOIs
Publication statusPublished - May 2003
Externally publishedYes

Fingerprint

oxygen atoms
inelastic scattering
neutron scattering
disorders
anomalies
temperature dependence
Inelastic neutron scattering
Order disorder transitions
profiles
Full width at half maximum
Oxygen
Atoms
Temperature
temperature
energy
Experiments

Keywords

  • Neutron scattering
  • Phonon
  • Spin-Peierls

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Phonon anomaly in the inorganic spin-Peierls compound CuGeO3 . / Nishi, M.; Fujii, Y.; Kadowaki, H.; Katano, S.; Kakurai, K.; Akimitsu, Jun.

In: Physica B: Condensed Matter, Vol. 329-333, No. II, 05.2003, p. 872-873.

Research output: Contribution to journalArticle

Nishi, M, Fujii, Y, Kadowaki, H, Katano, S, Kakurai, K & Akimitsu, J 2003, 'Phonon anomaly in the inorganic spin-Peierls compound CuGeO3 ', Physica B: Condensed Matter, vol. 329-333, no. II, pp. 872-873. https://doi.org/10.1016/S0921-4526(02)01869-0
Nishi, M. ; Fujii, Y. ; Kadowaki, H. ; Katano, S. ; Kakurai, K. ; Akimitsu, Jun. / Phonon anomaly in the inorganic spin-Peierls compound CuGeO3 . In: Physica B: Condensed Matter. 2003 ; Vol. 329-333, No. II. pp. 872-873.
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AU - Akimitsu, Jun

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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.

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