Neutron-scattering study on the spin-Peierls transition in a quasi-one-dimensional magnet CuGeO3

M. Nishi, O. Fujita, Jun Akimitsu

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Abstract

We experimentally show that in the inorganic spin-Peierls compound CuGeO3 the inelastic-neutron-scattering intensity with ΔE=1 meV at (0,1,0.5) exponentially decreases below TSP(=14 K) due to the formation of the spin-Peierls gap. We also found that the magnetic excitation spectrum exhibits a pronounced energy dispersion, the intrachain and interchain exchange parameters Jc10.4 meV, Jb0.1Jc, and Ja-0.01Jc, and the gap energy at T=0 K is 2.1 meV, suggesting that Jb/Jc0.1 is rather large compared to the organic spin-Peierls system.

Original languageEnglish
Pages (from-to)6508-6510
Number of pages3
JournalPhysical Review B
Volume50
Issue number9
DOIs
Publication statusPublished - 1994
Externally publishedYes

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Inelastic neutron scattering
Neutron scattering
Magnets
neutron scattering
Energy gap
magnets
inelastic scattering
excitation
energy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Neutron-scattering study on the spin-Peierls transition in a quasi-one-dimensional magnet CuGeO3. / Nishi, M.; Fujita, O.; Akimitsu, Jun.

In: Physical Review B, Vol. 50, No. 9, 1994, p. 6508-6510.

Research output: Contribution to journalArticle

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