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

M. Nishi, O. Fujita, J. Akimitsu

Research output: Contribution to journalArticle

327 Citations (Scopus)

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 - Jan 1 1994
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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